Paul Gilster posts:
In interstellar terms, a ‘fast’ mission is one that is measured in decades rather than millennia. Say for the sake of argument that we achieve this capability some time within the next 200 years. Can you imagine where we’ll be in terms of telescope technology by that time? It’s an intriguing question, because telescopes capable of not just imaging exoplanets but seeing them in great detail would allow us to choose our destinations wisely even while giving us voluminous data on the myriad worlds we choose not to visit. Will they also reduce our urge to make the trip?
Former NASA administrator Dan Goldin described the effects of a telescope something like this back in 1999 at a meeting of the American Astronomical Society. Although he didn’t have a specific telescope technology in mind, he was sure that by the mid-point of the 21st Century, we would be seeing exoplanets up close, an educational opportunity unlike any ever offered. Goldin’s classroom of this future era is one I’d like to visit, if his description is anywhere near the truth:
“When you look on the walls, you see a dozen maps detailing the features of Earth-like planets orbiting neighboring stars. Schoolchildren can study the geography, oceans, and continents of other planets and imagine their exotic environments, just as we studied the Earth and wondered about exotic sounding places like Banghok and Istanbul … or, in my case growing up in the Bronx, exotic far-away places like Brooklyn.”
Webster Cash, an astronomer whose Aragoscope concept recently won a Phase I award from the NASA Innovative Advanced Concepts program (see ‘Aragoscope’ Offers High Resolution Optics in Space), has also been deeply involved in starshades, in which a large occulter works with a telescope-bearing spacecraft tens of thousands of kilometers away. With the occulter blocking light from the parent star, direct imaging of exoplanets down to Earth size and below becomes possible, allowing us to make spectroscopic analyses of their atmospheres. Pool data from fifty such systems using interferometry and spectacular close-up images may one day be possible.
Image: The basic occulter concept, with telescope trailing the occulter and using it to separate planet light from the light of the parent star. Credit: Webster Cash.
Have a look at Cash’s New Worlds pages at the University of Colorado for more. And imagine what we might do with the ability to look at an exoplanet through a view as close as a hundred kilometers, studying its oceans and continents, its weather systems, the patterns of its vegetation and, who knows, its city lights. Our one limitation would be the orbital inclination of the planet, which would prevent us from mapping every area on the surface, but given the benefits, this seems like a small issue. We would have achieved what Dan Goldin described.
Seth Shostak, whose ideas we looked at yesterday in the context of SETI and political will, has also recently written on what large — maybe I should say ‘extreme’ — telescopes can do for us. In Forget Space Travel: Build This Telescope, which ran in the Huffington Post, Shostak talks about a telescope that could map exoplanets with the same kind of detail you get with Google Earth. To study planets within 100 light years, the instrument would require capabilities that outstrip those of Cash’s cluster of interferometrically communicating space telescopes:
At 100 light-years, something the size of a Honda Accord — which I propose as a standard imaging test object — subtends an angle of a half-trillionth of a second of arc. In case that number doesn’t speak to you, it’s roughly the apparent size of a cell nucleus on Pluto, as viewed from Earth.
You will not be stunned to hear that resolving something that minuscule requires a telescope with a honking size. At ordinary optical wavelengths, “honking” works out to a mirror 100 million miles across. You could nicely fit a reflector that large between the orbits of Mercury and Mars. Big, yes, but it would permit you to examine exoplanets in incredible detail.
Or, of course, you can do what Shostak is really getting at, which is to use interferometry to pool data from thousands of small mirrors in space spread out over 100 million miles, an array of the sort we are already building for radio observations and learning how to improve for optical and infrared work on Earth. Shostak discusses a system like this, which again is conceivable within the time-frame we are talking about for developing an actual interstellar probe, as a way to vanquish what he calls ‘the tyranny of distance.’ And, he adds, ‘You can forget deep space probes.’
I doubt we would do that, however, because we can hope that among the many worlds such a space-based array would reveal to us would be some that fire our imaginations and demand much closer study. The impulse to send robotic if not human crews will doubtless be fired by many of the exotic scenes we will observe. I wouldn’t consider this mammoth space array our only way of interacting with the galaxy, then, but an indispensable adjunct to our expansion into it.
Of course Shostak takes the long, sensor derived view of exploring the Universe, his life’s work is radio telescopes.
Gilster is correct that interferometry will be an adjunct to sending robotic probes to distant interstellar worlds, you can’t make money by just gawking at places.
Or can you?
I discovered Karl Schroeder’s work when I was researching brown dwarfs some years ago. Who knew that somebody was writing novels about civilizations around these dim objects? Permanence (Tor, 2003) was a real eye-opener, as were the deep-space cultures it described. Schroeder hooked me again with his latest book — he’s dealing with a preoccupation of mine, a human presence in the deep space regions between ourselves and the nearest stars, where resources are abundant and dark worlds move far from any sun. How to maintain such a society and allow it to grow into something like an empire? Karl explains the mechanism below. Science fiction fans, of which there are many on Centauri Dreams, will know Karl as the author of many other novels, including Ventus (2000), Lady of Mazes (2005) and Sun of Suns (2006).
by Karl Schroeder
My newest science fiction novel, Lockstep, has just finished its serialization in Analogmagazine, and Tor Books will have it on the bookshelves March 24. Reactions have been pretty favourable—except that I’ve managed to offend a small but vocal group of my readers. It seems that some people are outraged that I’ve written an SF story in which faster than light travel is impossible.
I did write Lockstep because I understood that it’s not actual starflight that interests most people—it’s the romance of a Star Trek or Star Wars-type interstellar civilization they want. Not the reality, but the fantasy. Even so, I misjudged the, well, the fervor with which some people cling to the belief that the lightspeed limit will just somehow, magically and handwavingly, get engineered around.
This is ironic, because the whole point of Lockstep was to find a way to have that Star Wars-like interstellar civilization in reality and not just fantasy. As an artist, I’m familiar with the power of creative constraint to generate ideas, and for Lockstep I put two constraints on myself: 1) No FTL or unknown science would be allowed in the novel. 2) The novel would contain a full-blown interstellar civilization exactly like those you find in books with FTL.
Creativity under constraint is the best kind of creativity; it’s the kind that really may take us to the stars someday. In this case, by placing such mutually contradictory — even impossible — restrictions on myself, I was forced into a solution that, in hindsight, is obvious. It is simply this: everyone I know of who has thought about interstellar civilization has thought that the big problem to be solved is the problem of speed. The issue, though (as opposed to the problem), is how to travel to an interstellar destination, spend some time there, and return to the same home you left. Near-c travel solves this problem for you, but not for those you left at home. FTL solves the problem for both you and home, but with the caveat that it’s impossible. (Okay, okay, for the outraged among you: as far as we know. To put it more exactly, we can’t prove that FTL is impossible any more than we can prove that Santa Claus doesn’t exist. I’ll concede that.)
Read the rest here…
From Centauri Dreams:
Astronautics pioneer Robert H. Goddard is usually thought of in connection with liquid fuel rockets. It was his test flight of such a rocket in March of 1926 that demonstrated a principle he had been working on since patenting two concepts for future engines, one a liquid fuel design, the other a staged rocket using solid fuels. “A Method of Reaching Extreme Altitudes,” published in 1920, was a treatise published by the Smithsonian that developed the mathematics behind rocket flight, a report that discussed the possibility of a rocket reaching the Moon.
While Goddard’s work could be said to have anticipated many technologies subsequently developed by later engineers, the man was not without a visionary streak that went well beyond the near-term, expressing itself on at least one occasion on the subject of interstellar flight. Written in January of 1918, “The Ultimate Migration” was not a scientific paper but merely a set of notes, one that Goddard carefully tucked away from view, as seen in this excerpt from his later document “Material for an Autobiography” (1927):
“A manuscript I wrote on January 14, 1918 … and deposited in a friend’s safe … speculated as to the last migration of the human race, as consisting of a number of expeditions sent out into the regions of thickly distributed stars, taking in a condensed form all the knowledge of the race, using either atomic energy or hydrogen, oxygen and solar energy… [It] was contained in an inner envelope which suggested that the writing inside should be read only by an optimist.”
Optimism is, of course, standard currency in these pages, so it seems natural to reconsider Goddard’s ideas here. As to his caution, we might remember that the idea of a lunar mission discussed in “A Method of Reaching Extreme Altitudes” not long after would bring him ridicule from some elements in the press, who lectured him on the infeasibility of a rocket engine functioning in space without air to push against. It was Goddard, of course, who was right, but he was ever a cautious man, and his dislike of the press was, I suspect, not so much born out of this incident but simply confirmed by it.
In the event, Goddard’s manuscript remained sealed and was not published until 1972. What I hadn’t realized was that Goddard, on the same day he wrote the original manuscript, also wrote a condensed version that David Baker recently published for the British Interplanetary Society. It’s an interesting distillation of the rocket scientist’s thoughts that speculates on how we might use an asteroid or a small moon as the vehicle for a journey to another star. The ideal propulsion method would, in Goddard’s view, be through the control of what he called ‘intra-atomic energy.’
Image: Rocket pioneer Robert H. Goddard, whose notes on an interstellar future discuss human migration to the stars.
Atomic propulsion would allow journeys to the stars lasting thousands of years with the passengers living inside a generation ship, one in which, he noted, “the characteristics and natures of the passengers might change, with the succeeding generations.” We’ve made the same speculation here, wondering whether a crew living and dying inside an artificial world wouldn’t so adapt to the environment that it would eventually choose not to live on a planetary surface, no matter what it found in the destination solar system.
And if atomic energy could not be harnessed? In that case, Goddard speculated that humans could be placed in what we today would think of as suspended animation, the crew awakened at intervals of 10,000 years for a passage to the nearest stars, and intervals of a million years for greater distances. Goddard speculates on how an accurate clock could be built to ensure awakening, which he thought would be necessary for human intervention to steer the spacecraft if it came to be off its course. Suspended animation would involve huge changes to the body:
…will it be possible to reduce the protoplasm in the human body to the granular state, so that it can withstand the intense cold of interstellar space? It would probably be necessary to dessicate the body, more or less, before this state could be produced. Awakening may have to be done very slowly. It might be necessary to have people evolve, through a number of generations, for this purpose.
As to destinations, Goddard saw the ideal as a star like the Sun or, interestingly, a binary system with two suns like ours — perhaps he was thinking of the Alpha Centauri stars here. But that was only the beginning, for Goddard thought in terms of migration, not just exploration. His notes tell us that expeditions should be sent to all parts of the Milky Way, wherever new stars are thickly clustered. Each expedition should include “…all the knowledge, literature, art (in a condensed form), and description of tools, appliances, and processes, in as condensed, light, and indestructible a form as possible, so that a new civilisation could begin where the old ended.”
The notes end with the thought that if neither of these scenarios develops, it might still be possible to spread our species to the stars by sending human protoplasm, “…this protoplasm being of such a nature as to produce human beings eventually, by evolution.” Given that Goddard locked his manuscript away, it could have had no influence on Konstantin Tsiolkovsky’s essay “The Future of Earth and Mankind,” which in 1928 speculated that humans might travel on millennial voyages to the stars aboard the future equivalent of a Noah’s Ark.
Interstellar voyages lasting thousands of years would become a familiar trope of science fiction in the ensuing decades, but it is interesting to see how, at the dawn of liquid fuel rocketry, rocket pioneers were already thinking ahead to far-future implications of the technology. Goddard was writing at a time when estimates of the Sun’s lifetime gave our species just millions of years before its demise — a cooling Sun was a reason for future migration. We would later learn the Sun’s lifetime was much longer, but the migration of humans to the stars would retain its fascination for those who contemplate not only worldships but much faster journeys.
Goddard was obviously influenced by his contemporary J.D. Bernal with his The World, the Flesh and the Devil which predicted Man’s spread out into the Solar System and interstellar space with artificial worlds and hollowed out asteroids.
These worlds are needed because such journeys will take hundreds or perhaps thousands of years.
Of course that brings in natural evolution and what these people inside these places will become when they eventually reach their destinations and if they’ll actually have need of them.
This picture was produced by my son Chris with my assistance to develop imagery that helps describe a “solid light” case that was focused at a beach headland area at Kiama New South Wales in Australia back in the early 1970s. I have revisited this affair many times and it has inspired my worldwide focus on similar cases. Gildas Bourdais from France helped me immensely with regard to the strange event played at Taize back in 1972. I have also focused on the classic Trancas case from Argentina in 1963. Both cases are striking, but not without their weaknesses and possible explanations. In both cases my enquiries to date suggest the possible explanations are not all that compelling, but we still need to examine them, to see how the evidence for these classic cases stack up.An objective and solid evidence based focus on the role military and government has emerged with the appearance of the book “UFOs and Government – A Historical Inquiry” by the UFO History Group, the primary authors being Dr. Michael Swords and Robert Powell, and contributions from the rest of the group – Clas Svahn, Vicente-Juan Ballester Olmos, myself (Bill Chalker), Barry Greenwood, Richard Thieme, Jan Aldrich and Steve Purcell.One of the major themes that runs through the “UFOs and Government” narrative is the recurring sense of lost opportunities to engage appropriately with a consistently unexplained phenomena, which if studied properly could yield fascinating scientific breakthroughs. When the picture presented is of poor investigation and active debunking with far too little serious in depth analysis, and yet we have impressive international evidence of a consistent unexplained phenomenon, there is a vast disconnection from an appropriate scientific response.The book “UFOs and Government” alludes to several lost opportunities to focus on enduring unexplained attributes of the UFO phenomenon. Unfortunately if your only insight into the UFO phenomenon was the typical debunking official military response revealed time and time again by their documents and histories, you would miss these strange and possibly breakthrough attributes of the UFO phenomenon.A striking example of this is the fascinating 1960 Red Bluff California case where official attitudes caused a UFO witness, a highway patrol officer, to not initially describe the “light beam projected by the object seemed like what would be described today, as a big, fat laser beam. That is, it did not spread out or diffuse “properly.” But worse than that, the beam seemed to have an “end” to it,” wrote Mike Swords. Here was a remarkable example of what many researchers have called “solid light” in action. In writing this Dr. Swords touched upon a critical issue. He highlighted that Dr. James McDonald did manage to draw out this remarkable detail, because he was actually interested in what the witnesses reported, rather than conducting a myopic debunking exercise. Genuine scientific skepticism, driven by a desire to question and carefully investigate an experience can potentially yield scientific breakthroughs. We now know that there are many such cases of “this peculiar sawed-off light” or “solid light.”Indeed Michael Sword’s indicated in an endnote in “UFOs and Government” that “sawed-off light” cases are “a peculiar feature of a smallish set of “high strangeness” UFO encounters. As these encounters are widely spread across the world, this feature is suprising and difficult to explain on sociological grounds.” He indicated he had some 44 cases in his own files.I had been studying these sorts of “solid light” cases for decades so I naturally contacted Mike about his collection.I emailed Mike Swords:“I have been quietly studying for decades this strange aspect of many worldwide UFO cases and have developed a very disorganised collection of material on such cases.“In both “The OZ Files” and “Hair of the Alien” I refer to solid light cases and describe an Australian case from Kiama, southern NSW from the early 1970s. I have been looking into the case since learning of it in the 1990s and earlier this year conducted a very detailed site investigation to determine if the observations reported by the primary witness were possible and to see if further information could be found. The case is rather complicated and also has entity and abduction aspects. The primary witness has closely guarded his privacy and I have only had one face to face meeting with him, as well as many phone conversations, written statements and emails.“The on site investigations this year took place because the main witness was more forthcoming with locational details. Some of this was in my original interview notes and material when we originally talked in person, however they were not precise enough to undertake an on site reconstruction. Finally this year these confirmations were forthcoming and I had sufficient detail to locate the exact viewing locations, lines of sight, and confirm accurately the Kiama beach location. I stayed there for 2 days gathering information and managed to confirm that his ex parents in law were still living at the house in question. The ex father in law while elderly recollected the night, but while he feels he may not remember the event as the main witness Graham described to me, he is certain that his former son-in-law would not have invented the story. Bill, the ex-father in law, recollects that Graham was agitated and focused on the incident, but Bill cannot recollect that his own involvement was as Graham described it in his accounts to me.“Having talked to Graham a number of times over the years I have found him to be a compelling witness, but one who has struggled mightily with the ontological status of the events. Indeed he was originally much more comfortable casting the event as a strange dream. While the recent investigations seem to caste the stranger aspects as being witnessed by Graham only with marginal supporting cast in the form of his ex wife and ex father and mother in law, as well as possibly some neighbours, who may have interpreted the event in different ways, this seems to be a strange “display” event, so frequently reported in many CE type cases, particularly those with high strangeness elements, such as this one. In many of these sorts of cases there often seems to be selective perceptions of the events, sometimes so acute that often people near to each other have a very different experience, as if a central witness is the only intended viewer?“The ongoing investigation has continued to energise my interest in solid light cases and I have been attempting to drag all my solid light cases together with a view to create a catalogue of such cases, building on the early SOBEPS catalogue of the 1970s.“I was also intrigued with a UFO film taken by Ray Stanford, covered in Chris Lambright‘s recent e-book “X Descending”. Because I had some previous contact with Ray back in the 1970s and early 1980s and talked to him briefly at the 1987 Washington DC MUFON symposium, I renewed our acquaintance. This lead to some extensive email exchanges in which he elaborated on the “new film”, beyond the “air spike”/Leik Myrabo connection which Chris has understandably focused on.“Instead I focused on a different part of the same footage which appears to show a “solid light” projection event.“Apart from many other cases I was also drawn towards a Chinese event I located that occurred in 1998 at a desert Air Force base, involving a Chinese Air Force F-6 pursuit. The possibly striking confirmation of Zhao Xu, who is described as a famous Chinese Defence expert in unmanned aircraft, as one of the various high level witnesses, who mentioned “Surprisingly these two light beams of light were not as we normally see light beams, as has been according to the distance and spread, but as two light-emitting entities, sticking out from the bottom of the UFO ending on a certain length. At least today we have not got control of this sort of light technology.” Radar detection was also involved. Given this comment was made by a defence specialist* I suspect some Chinese military science investigation and research since then.* Correction: following further research and more detailed translations the quote above referring to “two light-emitting entities” comes from General Li the PLAAF missile base commander in the Badain Jaran Desert in Lanzhou province. Major General Zhao Xu witnessed the UFO incident. It was General Li’s pilots who undertook the attempted aerial pirsuits and close up observations.“Meanwhile open science has been playing with Bose-Einstein condensates et.al to manipulate light in diverse ways – our crude opening gambit in a direction that might show us “solid light” effects that have been reported for decades in a diverse range of international (UFO) case material. Mainstream science directions in this area have been nicely summarised with references in Sidney Perkowitz‘s “Slow Light: Invisibility, Teleportation, and other mysteries of light” (2011).“Hence my ongoing deep focus on “solid light” cases and my long winded way of asking if I can get a copy of your 44 “solid light” case files! A big ask I know, but it would support an in-depth focus on these cases and perhaps a collaborative workup of a catalogue of such cases to build on the early and somewhat flawed SOBEPS catalogue?“Best wishes in “solid light” anticipation, like don’t keep me in the dark (pun intended),Bill”Mike was very helpful and shared his listing of cases. Indeed he addressed this research focus in his always interesting blog “The Big Study” – thebiggeststudy.blogspot.com – on October 19 2012 – with a post entitled” “SLOW LIGHT & UFOs”:“Bill Chalker wrote the other day. He’s contemplating making a review of so-called “solid light” UFO cases, and I welcome that. Bill’s a hard-science-trained ufologist and might just be able to make some sense of a real puzzlement in this field. He asked me if I’d scour my files for such cases [since I’d foolishly admitted to having around 44 of such things], and so I did, making a list for him to pursue and build his analysis more robustly [Bill already had a bigger bunch than that].”Mike further stated, “In my understanding the term “solid light” came from witness testimony— the light beam seemed “solid”; it was as if the beam extended like a solid tube, etc. This phrase stuck but is probably a bad one. The light effects that we’re witnessing in these cases behave not like solids but like “regular” light which is abnormally “contained” somehow. Things don’t seem to be “impacted” by these beams, only illuminated by them. The things [generally] seem to be more like spatially-constrained lasers [admittedly of wide diameter] than anything solid, and might well be more like tubes [i.e. hollow] than “full” beams.”I recommend readers read Mike Swords valuable post on this fascinating group of cases.I’ve included the core details of the catalyst for this re-invigorated enquiry into “solid light” cases.BIZZARE UFO “LIGHT” PHENOMENA AT KIAMA…. I was approached by a man who was troubled by a bizarre episode on the south coast at Kiama, in the early 1970s…. The reporting witness, who I will call Graham, has pondered the nature of what occurred. He is troubled by it and now feels more comfortable with it being a dream. The fragmentary nature of the events and the strange elements of the experience beckon this interpretation. But there are startling aspects that fit in with some extraordinary characteristics of the UFO phenomenon. I have spoken to Graham on a number of occasions and meet him directly for an extended interview. I found him to be a compelling witness who is grappling with the ontological issues that striking episodes often force us to confront. I have quoted from his own prepared statement:“Awoken by a light coming into the room, I was too drowsy to do anything about it, I wanted to sleep. It came to mind that the only way light could come into the window was a light was being shone at it. I thought it may be an intruder so I forced myself awake, to step over the baby and my two year old daughter sleeping on the floor beside me. When I got to the window I could see nothing unusual outside. Thinking it must have been a dream because I had remarked on the endless stream of car headlights winding their way along the old highway towards Sydney. I laid down again and fell quickly asleep. Again the light came into the room. This time I jumped up quickly, wide awake again, there was nothing unusual outside. Suddenly I saw a light beam white in colour with a blue fluorescent tinge evaporating from it. Because of the luminescence of the light I was able to make out the shape of a flying craft from which the beam projected at an angle to the ground of about 75o. “The beam was about 30 feet long and about 2 feet six inches diameter, given the craft was between the headland I was on and the next headland. Suddenly the beam, still only 30 feet long fell, like a perfect cylinder of solid light. It did not fall in the direction of gravity, it continued along the path of its own axis. The cylinder of solid light hit a caravan. Upon impact the light behaved like water, pouring over the caravan, over its roof, over its walls, over every nook and cranny of the van. Like fluorescent paint from an electro, airless spray gun. The caravan illuminated completely for about three seconds then the light faded away. My attention was on the light. I could not see the craft any more.“I rubbed my eyes and looked for the craft. It appeared slightly to the left of its original position with another beam of light, descending from it at a very slow speed; say about only 3 feet per second. When the beam reached a given length, longer than the first time, it began falling as before. This time it hit an amenities block and the light covered its surfaces completely illuminating it in the same way as the caravan. Again the light faded away.“From the same location, the craft let another beam go at an angle of about 45o to the ground level line. The beam was much longer than before. It reached the beach and illuminated approximately an area of sand forty feet at its widest. Inside the lighted area were two men standing motionless looking up at the craft. A young woman jumped up from sitting near a small beach fire and ran to stand with the two men. A second young woman was running backwards trying to brush the light off her arms and body. Then she too stood separate to the other three and also stared up at the craft. The light suddenly went out and I looked for the people. Has it taken the people I thought. Where as I was marvelling at the craft and light before, I now became angry, thinking it has terrorised that woman. It was not a good thing as I first thought. Now I could see the fire dimly glowing. I looked this way and that to see if any of the people walked in front of the fire, to prove they were still there. I fell asleep on my feet. When I awoke I was standing on the other side of the window, one hand on the window.“I looked outside the window only feet away. The craft hovered over the street in front of the house. It manoeuvred very close to the window. I was impressed that it looked like a spaceship. It had no helicopter noises or blades. It did not force itself off the ground. There was no blowing of the small trees. It was not a hovercraft, and it had no wings like a plane. The metallic material it was made of appeared as though it was unpolished Zinc alloy. It had no seams, no rivets, no weld marks, no plates visible. It was as if it was made from one piece of metal about 40 feet wide and 10 feet high, which began to spin in one direction, then it stopped and spun for a shorter time in the opposite direction. Then it stopped spinning, hovering in a steady position above the skyline. There were no thoughts it belonged to the western world. That it was a secret craft, that got into difficulty. That I wasn’t meant to see. I blacked out.“When I came to, the craft was still opposite my window. I thought why was I meant to see that it had no welds or seams, it seemed to want to show me that. I looked at a window shape about six feet wide and two feet six inches high with carved corners. The metallic window shield suddenly disappeared and I could see inside the craft. I saw no fittings. It had flat vertical off white walls. I felt very peaciful. A man walked into the room of the craft and stood in front of the window. As he walked in he was looking at a flat object he was holding in his hands, like a clip board but thicker. He began to move his arms as though he was working on something at bench height below the window. Totally absorbed, he worked away. I felt completely safe. Another man then entered the room looking at the other man and what he was doing. He stood also facing me looking at the bench and pointing like without words he was helping the other fix something.“They had bright silver one piece suits like thin wetsuits on, with no badges or markings. They carried no weapons or tools. The craft had no fittings or anything that looked like a weapon, so I felt safe. And besides, they didn’t know I was watching them. With that thought the last one to enter the room smiled at the other, then they both smiled directly at me. I had physical fright, my hair stood on end literally and I knew what it meant to be really scared. I dropped to the floor and said, “Everybody keep down. Stay out of the light.” I knew that in the light they could control my thinking to feel and think peacefully. Suddenly great noise and severe vibration of the house took place. The laundry light went dim, the fridge began jumping about and there was great noise above the roof. The washing machine was bumping about also. I said, “Quickly get under the doorways, the house is going to fall.” It was like the craft overhead sucked the electricity out of the house, then took off.“Bill shouted out, “Shit, what was that? It took the bloody roof off.” I said, “It was a UFO.” Somebody said what, againI said, it was a UFO. Bill said, “Yes I saw it as it took the roof off.” Bill was trying to comprehend how come the roof was still there.“Gordon __ living behind came out to his back door and said very explicitly, “What the …… was that? I thought it took the roof off.” He too was greatly concerned with checking out his roof, reassuring himself it was still there. The lady next door on the seaward side opened a window and said, “Where did it crash? Do we have to get out?” She became very angry saying again, “Do we have to get out?” No you’re safe. It’s gone. Relieved, she said, “I am alone with the children tonight, that bloody pilot should be shot for that.” It was unusual to hear people who I had never heard swear before, swearing.“Bill and Gordon were saying it was a UFO. Suddenly, __, Bill’s wife began to try and quieten everyone down and get us all inside. We decided that I should phone the Nowra base. I spoke to the duty officer. He said he was the only one on duty. He asked me if I saw any orange lights. I said, “Yes.” He then quickly said it was a weather balloon you saw, it was let go at such and such a time from Jambaroo, it didn’t inflate properly and other people reported seeing it as an orange light over Kiama. In my mind I thought, he knows what it was, it must be secret. I’ve done my duty reporting it, so that was that.“The next day (our wives) said two men in dark suits with ID tags came to the door asking did any one see anything unusual last night. Frightened by the men, they said no and the men went on. (Our wives) warned me not to speak about it, they were very frightened that something would happen to me if I spoke up and also it would make us a laughing stock in the community. The plan was we would forget it, not talk about it, even to one another. So it would be distanced from our lives.“Bill was reading the paper some days later and said an expensive Navy helicopter flew from Jambaroo over Kiama. It lost its electronics and crashed forty kilometres out to sea off Kiama. The navy was reported to be trying to recover it to find out what happened. The crew were rescued. I said, “Yeh, I know about losing power, the same thing happened to the helicopter as what happened to the fridge and the laundry light. The UFO took its electricity.” Nothing was said further. We ignored the event. What I saw holds future understanding for me, if it was a dream I believe. Possibly it was an active imagination, a dream and actual occurrences combined.”This strange affair has several defined stages, but the evident discontinuities in awareness, argue both for a surreal, dream like quality and also reflect the paradoxical reality of some of the stranger elements of the UFO phenomenon. The extraordinary behaviour of the “light beams” behaving as both “solid” and “liquid” has been reported elsewhere in Australia and overseas. The apparent display quality to episodes in the incident is reflected in many cases. There seems to have been a number of gaps in the time sequence. The apparent plight of the people on the beach is provocative, and one I am trying to unravel. This is clearly a case that would benefit from further in depth enquiry.Fortunately the original witness to the Kiama case re-contacted me. He has been very difficult to relocate after my original interviews with him. He is still very guarded about his privacy and protecting the welfare of his family. However we were able to have some very extensive discussions and a detailed interview where I was able to locate the events much more precisely in the Kiama area and secure more details about the incident.He confirmed an aspect I had long suspected as part of the experience, which he only original hinted at in the vaguest possible way. He has an abduction recollection that was consciously recollected at the time, but he was extremely reluctant to share these details during our original discussions years ago.He recollects sitting in a curved hallway in a strange environment. He heard a voice and turned to find a woman. She asked him, “Do you remember what happened in there?” “No,” he replied. “Do you?” he asked. “Put it this way, I won’t be telling my husband.”He doesn’t recollect much more, or he volunteered little further detail about this aspect of the Kiama encounter. However he did say he started to frequent some UFO group meetings with the express purpose of seeing if he could find the woman he had encountered in the Kiama experience. At one meeting he saw a woman who looked like the woman encountered in the “strange environment”, presumably onboard the UFO. When he started to talk to her he felt she was not the right person and did not persist with the conversation.
I described some of the results of my 2012 field investigations in the Kiama area in my email to Mike Swords quoted above. I hope that further research and investigation will continue to assist the evaluation of this strange case. It will be fascinating if the ongoing enquiries further validate the affair. “Solid light” cases represent an intriguing and challenging opportunity to research a potential “breakthrough” aspect of the UFO phenomenon. If we can get to the bottom of such extraordinary manipulations of light and other associated UFO light phenomena, then real progress in a UFO science can be made. Maybe mainstream science is slowly catching up. New Scientist has done a few reports on “tractor beam” development following the Bessel beam principle, including this one:which was accompanied by this Russell Tate/Getty Imagest image:
An earlier New Scientist piece (3 March 2011) highlighted the Chinese connection: http://www.newscientist.com/article/dn20193-treklike-tractor-beam-is-possible.html(This image accompanied the March 2011 New Scientist article)
Now Jun Chen of Fudan University in Shanghai, China, and colleagues, have shown that it is possible to create exotic beams that would pull rather than push on an object. For tiny particles with dimensions of a thousandth of a millimetre or so, this would result in the particle being drawn back towards the beam.Hmm … I wonder what inspired them? Perhaps the Zhao Xu and General Li 1998 UFO observation? Seems to me that maybe someone within our more clandestine scientific community is already trawling through “solid light” UFO cases?
The “solid light” phenomenon is gaining scientific value in the laboratory as in the actual “slowing down” of light in crystals and heavy gases using diffuse lasers.
All in all, I think that the answer to the UFO issue lies in finding the answer to quantum entanglement, brane theory and linking of parallel universes at a practical level.
Hat tip to The Anomalist.
Transcript of classified tape recording made at Camp David, Maryland during a presidential briefing regarding the subject of UNIDENTIFIED FLYING OBJECTS and EXTRATERRESTRIAL VISITATION of EARTH. President RONALD REAGAN was present. The recording was made between March 6 and 8, 1981.
WILLIAM CASEY: Mr President, good morning. As we discussed in February, this briefing contains some very sensational and some very, very classified information. I am not sure, oh, well, I’m not going to make a decision on who you want in the room. That will be your decision, Mr President. This will be a real tough one to follow since the briefing starts back, historically speaking, that is, and runs up to recent times. I believe we have prepared a good chronological order of events. I’m sure you, Mr President, will have many questions.
The list of questions presented to me by ADVISER #2 should all be answered during this briefing. I hope they are, more than anyone, especially you, Mr President, leave this briefing with questions still unanswered. I have asked The Caretaker to conduct this briefing. He is a contract employee of the CIA and is the present custodian of the information. Are we to assume that everyone is present?
PRESIDENT: Well, it will be entirely up to you, Bill. I guess everyone must be cleared for this briefing of information, is that not correct?
WM CASEY: Well, it appears everyone is, but as you will see Mr President, this stuff is pretty high up on the food chain. We call it ATS or “Above Top Secret.” This stuff has its own classification and markings. We have a special container, special printers and copiers for this stuff. Every word of this material is printed on special paper then placed inside special covers. The caretakers have taken special efforts to protect all of this stuff from being released inadvertently or copied by some unauthorized person.
But all of this material is protected by a special group of people. The Caretaker is in charge of protecting this information and all of the other stuff associated with this information. I would prefer that you, Mr President, decide on who you want in this room. Remember, this material is a closely guarded secret. Although the gist of the story has been out there for many years, very little of the ACTUAL TRUTH has ever been released to the public. Oh, yes, well, by some of the renegades maybe, but many of them have been discredited.
PRESIDENT: OK, Bill, I guess we need ADVISER #1, you, ADVISER #3 and Caspar here. I think ADVISER #2 and Michael can leave.
ADVISER #2: Mr President, excuse me, but I would prefer to leave. I don’t wish to know this information. You know, plausible denial or something like that.
MICHAEL DEAVER: Mr President, whatever you wish, I’ll do. It would be an interesting subject, but do I really have a need to know? No, I don’t think so.
PRESIDENT: OK, I guess that is it.
WM CASEY: Thank you, Mr President. I will now turn the briefing over to The Caretaker.
ADVISER #3: Mr President, and Mr Director, I already had this briefing. I can stay or leave. Secretary Weinberger and myself received this a few weeks ago.
SECRETARY WEINBERGER: Mr President, as you know, we have some pending business regarding that Soviet problem in Berlin. I think we might just handle that. ADVISER #3 and I will let you close this meeting to just a few.
PRESIDENT: OK, Casp, I guess you and ADVISER #3 can leave. Thanks for coming.
WM CASEY: OK, Mr President, that certainly narrows the audience. I think this is just right.
PRESIDENT: OK, well, I can’t wait to hear this. Let’s proceed.
The CARETAKER: Good morning, Mr President. First of all, I would like to give you a bit of information on my background. But before that, please, Mr President, if you have questions during this briefing, just interrupt me, sir. I have been employed by the CIA for the past 31 years. I started the caretaking status of this project in 1960. We have a special group of people whom we call “Group 6,” that cares for all this information.
PRESIDENT: Good morning, I hope, well, I believe I will ask questions. Bill briefed me back in January, but I’m not sure … huh … well, was it detailed, no, I don’t think so … huh … OK, well I’m sure Bill didn’t tell me all ’cause we only had about one hour.
WM CASEY: Mr President, I only gave you a quick briefing for the NSDD (National Security Decision Directives) that we want to incorporate into the overall action directives about this subject. ADVISER #3, Caspar and I have details far beyond what I knew before January. The last administration wasn’t too keen on making all of this stuff accessible to us during the briefings in November and December.
PRESIDENT: Well, I knew a little about this subject before. Back in 1970. Nixon had all of the good stuff and wanted to share it with some of his friends. Nixon showed me some papers. Not sure about who authored them, but they … huh … well something about New Mexico and other places. Nixon was pretty … huh … well, you know, fascinated with it. He showed me something, some kind of object or device that came from one of their craft. Something that was taken from the New Mexico crash site. I don’t know if, well … huh … do we know what it was? I don’t think we knew or maybe now, after 11 years, we might know.
The CARETAKER: Mr President, I can answer some of those questions. Do you wish for me to begin?
PRESIDENT: Oh, well, what level is this? I mean, what was it called? I don’t remember what they called this.
WM CASEY: Mr President, codeword. It’s called Top Secret Codeword. This information is beyond Top Secret as I said before. It has its own classification. It is very compartmentalized.
PRESIDENT: Well, I guess just the minimum. Are we recording this?
The CARETAKER: Mr President, no, unless you wish.
WM CASEY: Yes, it is [CIA FEMALE TRANSCRIBER] who is doing that. I think we should. I don’t want to make any mistakes later about this. ADVISER #4 should also stay, since he is one of the caretakers of the information.
PRESIDENT: Well, I don’t want anyone leaking this stuff. Not knowing what we are about to discuss … huh … oh, well, Bill I guess it is your call. ADVISER #4 should stay. I guess he should … huh … oh, OK, well, you make the call, Bill.
WM CASEY: OK, I guess ADVISER #4 will stay. But I think [CIA FEMALE TRANSCRIBER] must stay. I’ll make that call.
PRESIDENT: OK, I guess we can do our business first, give me a few minutes. Let’s get some food first, or snacks. How long will … huh …. oh, about one hour?
The CARETAKER: Mr President, I estimate this will last about one hour, at least the first part of it. This is a very complicated subject to brief. I can do it, but maybe the questions will extend [beyond the first] the time period.
PRESIDENT: OK, I see. Let’s take a break and then reconvene.
The CARETAKER: OK, Mr President, are we ready?
PRESIDENT: Yes, we are, let’s go.
The CARETAKER: Mr President, as was mentioned earlier, I must say, that this briefing has the highest classification within the U.S. government. I will start with a slide presentation. I have most of this briefing on the slides, but I also have an outline that I have passed out to each [person] in attendance.
PRESIDENT: Oh, OK, so are we … can we follow it with the [outline] paper?
The CARETAKER: Yes, Mr President, you can follow the briefing with the outline in front of you.
PRESIDENT: Thank you.
The CARETAKER: The United States of America has been visited by Extraterrestrial Visitors since 1947. We have proof of that. However, we also have some proof that Earth has been visited for many THOUSANDS OF YEARS by various races of Extraterrestrial Visitors. Mr President, I’ll just refer to those visits as ETs. In July, 1947, a remarkable event occurred in New Mexico. During a storm, two ET spacecraft crashed. One crashed southwest of Corona, New Mexico and one crashed near Datil, New Mexico. The U.S. Army eventually found both sites and recovered all of the debris and one live Alien. I’ll refer to this live Alien as “EBE 1.” PRESIDENT: What does that mean? Do we have codes or a special terminology for this?
The CARETAKER: Mr President, EBE means “Extraterrestrial Biological Entity.” It was a code designated to this creature by the U.S. Army back in those days. This creature was not human and we had to decide on a term for it. So, scientists designated the creature as EBE 1. We also referred to it as “Noah.” There was different terminology used by various aspects of the U.S. military and intelligence community back then.
PRESIDENT: Do we or did we have others? The number “1” would seem to indicate we had others.
The CARETAKER: Yes, we had others. Back then, the term was EBE and no number designation. We’ll explain how the others came into our knowledge.
PRESIDENT: OK, sorry, I was just wondering and I guess, well, I’m sure the briefing will cover this. Please continue.
The CARETAKER: All the debris and EBEs recovered from the first crash site were taken to Roswell Army Air Field, Roswell, New Mexico. EBE was treated for some minor injuries and then taken to Los Alamos National Laboratories, which was the safest and most secure location in the world. Special accommodations were made for EBE. The debris was eventually transferred to Dayton, Ohio, home of the Air Force Foreign Technology Division. The second crash site wasn’t discovered until 1949 by some ranchers. There were no live Aliens at this site. All this debris went to Sandia Army Base in Albuquerque, New Mexico.
PRESIDENT: OK, a question, regarding the first site, how many aliens were in the spaceship?
The CARETAKER: Five (5) dead aliens and one (1) alive. The bodies of the dead aliens were transported to Wright Field in Ohio and kept in a form of deep freeze. They were later transported to Los Alamos where special containers were made to keep the bodies from decaying. There were four (4) dead aliens in the second crash site. Those bodies were in an advanced state of decaying. They had been in the desert for the past two (2) years. Animals and time got to those bodies. The remains were transported to Sandia Base and eventually onto Los Alamos. We determined both crashed spaceships were of similar design and the bodies of the aliens were all identical. They looked exactly the same. They had the same height, weight and physical features. Here are the photographs of the aliens.
PRESIDENT: Can we classify them? I mean can we … well, connect them with anything Earthly?
The CARETAKER: No, Mr President. They don’t have any similar characteristics of a human, with exception of there eyes, ears and a mouth. Their internal body organs are different. Their skin is different, their eyes, ears and even breathing is different. Their blood wasn’t red and their brain was entirely different from human. We could not classify any part of the Aliens with humans. They had blood and skin, although considerably different than human skin. Their eyes had two different eyelids. Probably because their home planet was very bright.
PRESIDENT: Maybe I’m getting ahead, but do we know where they came from? Mars, our system or where?
The CARETAKER: Yes, Mr President, we do know where they come from. I can go into this now, or I can wait until it comes up in the briefing.
PRESIDENT: No, no, please, continue. I can wait.
The CARETAKER: Thank you, Mr President. EBE stayed alive until 1952 when it died. We learned a great deal from EBE. Although EBE did not have voice organs like humans, it was able to communicate with an operation performed by military doctors. EBE was extremely intelligent. It learned English quickly, mainly by listening to the military personnel who were responsible for EBE’s safety and care.
EBE was housed in a special area at Los Alamos and Sandia Base. Although many different military doctors, scientists and a select number of civilians studied EBE, it never became upset or angry. EBE helped us learn from all the items found in the two crash sites. EBE showed us how some of the items worked, such as a communications device. It also showed us how various other devices worked.
PRESIDENT: Excuse me, but you are referring to this creature as an IT. Did it have a gender?
The CARETAKER: I’m sorry Mr President, but yes, it was male. Within EBE’s race they had males and females.
PRESIDENT: OK, thank you. Please continue.
The CARETAKER: Thank you, Mr President. EBE died of what military doctors considered natural causes. I don’t think we could really state exactly why EBE died. Although we had five (5) years to study EBE, we didn’t have any standards to compare EBE’s body with standard medical observations. It was difficult to lose EBE, since it was the most interesting thing we as humans could receive and study. A visitor from another planet … ANOTHER WORLD. EBE did explain where he lives in the universe. We call this star system Zeta Reticuli, which is about 40 light-years [38.42] from Earth. EBE’s planet was within this star system.
PRESIDENT: OK, where is this in comparison to something we all know?
The CARETAKER: Well, Mr President, our closet star is four light-years away. I can show you the constellation it is in.
[Alpha Centauri, a yellow star, is the brightest star in the constellation Centaurus, 4.3 light-years away]
PRESIDENT: No, I wouldn’t know much about astronomy. I just thought I could understand the distance. How long did it take this spaceship to get here?
The CARETAKER: Well, Mr President, I can tell you now or we can discuss that in another briefing. As Mr Casey said, this is a complicated subject because there are many levels of compartmentalization. This briefing is just the basic information about a visit to our planet by one particular alien race.
PRESIDENT: Well … huh … what, am I to understand … this isn’t a full briefing?
WM CASEY: Mr President, we have different levels of stuff. If we mix it up, I don’t think it will make sense, nor will we have time this morning. I understand you have a busy schedule today.
PRESIDENT: As the President of the United States, I should know EVERYTHING, right, or shouldn’t I? If I am to assume this was a briefing of substance, then I should hear ALL of it. I think this is more important than some other things on my daily calendar. But maybe I’m jumping the gun. If there are some things I shouldn’t know, please tell me.
WM CASEY: No, no, Mr President, I didn’t mean you shouldn’t know this stuff. I simply meant we should proceed in an orderly fashion as to the briefing. But it is up to you. We will not hold anything back.
PRESIDENT: ADVISER #1, what do you think? Do you know about all this?
ADVISER #1: Mr President, yes, I was briefed many times on this subject matter. As Director Casey stated, this is a very, very complicated subject. I think it took me about one year to be fully briefed into all aspects of this matter. There are different areas. The initial crash, an investigative period, some attempt at contact, A DISINFORMATION OPERATION to protect this matter and several other levels.
PRESIDENT: Oh, wow, I didn’t realize how complicated this was. I’m new at [all of] this. I have a great responsibility to the citizens of this nation to make decisions based on accurate information presented by my advisers … YOU, ALL of you. I won’t interfere in your presentation of this information. So, I guess, we’ll proceed in the order you have chosen. I’m sorry for interrupting in this presentation, but as a person who is interested beyond belief in this, I’ll just shut up and wait to ask questions.
WM CASEY: Mr President. No, no, please ask any questions you wish. You are the President. We are not here to argue with you over the order of this briefing. But some things are SO HIGHLY CLASSIFIED that THIS BRIEFING IS THE LOWEST LEVEL. If you ask a question that is in a different level, then we will have to re-evaluate the audience.
ADVISER #1: Mr President. Everything we know about Alien visitation to Earth is contained in 16 (sixteen) volumes of binders. These binders contain thousands of pages. We can give you anything you wish but, as Director Casey said, we must evaluate the clearances of each person listening to our responses.
PRESIDENT: OK, I now understand. Give me whatever you want and I’ll continue to ask questions. But if you need me to wait on an answer, just tell me.
WM CASEY: OK, Mr President we will do that. I still don’t know the entire story. I have read one tenth of one binder and have hundreds of questions.
PRESIDENT: OK, let’s continue.
The CARETAKER: Mr President, thank you for those responses. I will answer any question, if I can. But if the question is above this level, then Director Casey will have to make that decision for me.
PRESIDENT: I fully understand, please continue.
The CARETAKER: It took the EBE spaceship nine (9) of our months to travel the 40 [38.42] light-years. Now, as you can see, that would mean the EBE spaceship traveled faster than the speed of light. But, this is where it gets really technical. Their spaceships can travel through a form of “space tunnels” that gets them from point “A” to point “B” faster without having to travel at the speed of light. I cannot fully understand how they travel, but we have many top scientists who can understand their concept.
PRESIDENT: Well, I certainly couldn’t understand the science in that. Is it a black hole?
The CARETAKER: Mr President, something like that, but much more complicated.
PRESIDENT: Do they get here … no never mind, please continue. [unintelligible]
WM CASEY: Mr President, I can assure we know how they do it, but we can’t do it.
PRESIDENT: OK. (several speaking at once)
The CARETAKER: As to some history. The original project, started back in 1947, was called “Project GLEEM.” This project contained volumes of documented information collected from the beginning of our investigation of UFOs and Identified Alien Craft, or “IAC.” The project was originally established in the early ’50s by, first President Truman and then by order of President Eisenhower, under control of the National Security Council. President Truman established a group of people to handle this project. The group was called Majority 12 or “MJ-12.”
In 1966, the project’s name was changed to “Aquarius.” The project was funded by confidential [“black world”] funds appropriated within the intelligence community’s budget. The recovery of these alien spacecraft led the United States on an extensive investigative program to determine whether these aliens posed a direct threat to our National Security. As you might remember, Mr President, our country openly investigated UFO sightings under projects Grudge, Sign and finally Blue Book.
The original mission of the Air Force program was to collect and analyze all reported sightings and incidents involving UFOs and then determine whether the information could be interpreted as having any bearing on the national security of the United States. Some information was evaluated with the idea of using the gained data to advance our own space technology and future space programs.
About 90% of the estimated 12,000 reports analyzed by the Air Force under Blue Book were considered hoaxes, explained aerial phenomena or astronomical objects. The other 10% were considered legitimate alien sightings and/or incidents. However, not all UFO sightings or incidents were reported under the Air Force programs of Grudge, Sign and Blue Book.
In 1953, Project Gleem initiated its own investigative detail and certain sightings were reported directly under Gleem rather than one of the other projects. Project Gleem, which became “Project AQUARIUS” in 1966, was a parallel reporting system for UFO sightings and incidents.
Reports collected under Project Aquarius were considered actual sightings of alien spacecraft or actual contacts with alien life forms. We recovered two alien spacecraft from New Mexico. Both were heavily damaged, but we were able to examine them. The two craft were considered technological marvels by our scientists. However, the operating instrumentation was so advanced that our scientists could not decipher it. The two craft were stored in a special security location in the West. We gained a large volume of technological data from these craft.
Several independent scientific investigations, at the request of the Air Force and CIA were initiated during the era of “Project Blue Book.” MJ-12 decided that officially the Air Force should end their investigation of UFO sightings. This decision was arrived at during the NPNN meeting in 1966. The reason was two fold. First, the United States had established communications with the aliens.
PRESIDENT: Hold on, OK … well, Bill, no … never mind, please continue.
WM CASEY: Mr President, the communications project is of a higher level. I recommend we continue on this course and then switch to the next, if we have time.
PRESIDENT: OK, you’re steering the boat, Bill.
The CARETAKER: The United States felt relatively sure the aliens’ exploration of Earth was non-aggressive and non-hostile. It was also established that the aliens’ presence did not directly threaten the security of the United States. Secondly, the public was beginning to believe that UFOs were real. The NSC felt this public feeling could lead to a nationwide panic if we disclosed everything we knew about UFOs and alien visitation. We were involved in one major operation during this time frame that involved our alien visitors. That operation is of a higher level and it will be up to Director Casey to proceed now or wait until later.
WM CASEY: We’ll wait on that part of it. I haven’t been fully briefed and I would like to be able to know everything about that program before trying to brief the President.
ADVISER #1: I agree with Director Casey. That part of the program is really complicated and will require a full day to brief.
PRESIDENT: OK, as I said before, Bill’s the captain of this ship.
The CARETAKER: It was felt that public awareness of these projects would have jeopardized the future space program of the United States. Releasing our secrets about UFOs and alien visitation would also cause a PANIC AMONG RELIGIOUS LEADERS around the world. Therefore, MJ-12 decided that an independent scientific study of the UFO phenomena would be needed to satisfy the public curiosity.
The final official study of the UFO phenomena was accomplished by the University of Colorado under an air force contract. The study concluded that sufficient data did not exist that would indicate that UFOs threatened the security of the United States. The final conclusion satisfied the Government and allowed the Air Force to officially step out of the UFO investigating business.
When the Air Force officially closed “Blue Book” in December 1969, Project Aquarius continued operation under control of NSC/MJ-12. The NSC felt investigation of UFO sightings and incidents had to continue in secrecy without any public knowledge. The reasoning behind the decision was this: If the Air Force continued its investigation of UFOs, eventually some non-cleared and non-briefed Air Force or DOD civilian officials would obtain the facts behind Project Aquarius.
Obviously, for operational security reasons, this could not be allowed. In order to continue the investigation of UFO sightings and incidents in secrecy, investigators from CIA/DCE and MJ-12 were assigned to military investigative units with orders to investigate all legitimate UFO/IAC sightings and incidents. These agents are presently operating at various locations throughout the U.S. and Canada. All reports are filtered either directly or indirectly to MJ-12. These agents are collecting reports of UFO/IAC sightings and incidents occurring on or near sensitive governmental installations.
Many reported sightings and incidents have occurred over nuclear weapons bases. The aliens’ interest in our nuclear weapons can only be attributed to the future threat of a nuclear war on Earth that could affect space. The Air Force has initiated measures to assure the security of the nuclear weapons from alien theft or destruction. MJ-12 feels confident that the aliens are on an exploration of our solar system for peaceful purposes. However, we do have information and that is at another level, that more than one alien species are visiting Earth.
PRESIDENT: Well, that is a lot to digest. I have written down many questions. But let’s take a break and come back to this.
This is a good story and very entertaining, but there is no way to test whether this transcript is true or not.
But one must ask this question…”Why did Ronald Reagan give his “enemy alien” speech at the U.N. in 1987?”
What did Reagan know, or not know?
Was it just a symptom of his oncoming Alzheimer’s Disease?
There’s no way to tell now and this will forever be part of UFO folklore.
Hat tip to supernaturalufo.com.
From Centauri Dreams:
Jules Verne once had the notion of a comet grazing the Earth and carrying off a number of astounded people, whose adventures comprise the plot of the 1877 novel Off on a Comet. It’s a great yarn that was chosen by Hugo Gernsback to be reprinted as a serial in the first issues of his new magazine Amazing Stories back in 1926, but with a diameter of 2300 kilometers, Verne’s comet was much larger than anything we’ve actually observed. Comets tend to be small but they make up for it in volume, with an estimated 100 billion to several trillion thought to exist in the Oort Cloud. All that adds up to a total mass of several times the Earth’s.
Of course, coming up with mass estimates is, as with so much else about the Oort Cloud, a tricky business. Paul R. Weissman noted a probable error of about one order of magnitude when he produced the above estimate in 1983. What we are safe in saying is something that has caught Freeman Dyson’s attention: While most of the mass and volume in the galaxy is comprised of stars and planets, most of the area actually belongs to asteroids and comets. There’s a lot of real estate out there, and we’ll want to take advantage of it as we move into the outer Solar System and beyond.
Comets and Resources
Embedded with rock, dust and organic molecules, comets are composed of water ice as well as frozen gases like methane, carbon dioxide, carbon monoxide, ammonia and an assortment of compounds containing nitrogen, oxygen and sulfur. Porous and undifferentiated, these bodies are malleable enough to make them interesting from the standpoint of resource extraction. Richard P. Terra wrote about the possibilities in a 1991 article published in Analog:
This light fragile structure means that the resources present in the comet nuclei will be readily accessible to any human settlers. The porous mixture of dust and ice would offer little mechanical resistance, and the two components could easily be separated by the application of heat. Volatiles could be further refined through fractional distillation while the dust, which has a high content of iron and other ferrous metals, could easily be manipulated with magnetic fields.
Put a human infrastructure out in the realm of the comets, in other words, and resource extraction should be a workable proposition. Terra talks about colonies operating in the Oort Cloud but we can also consider it, as he does, a proving ground for even deeper space technologies aimed at crossing the gulf between the stars. Either way, as permanent settlements or as way stations offering resources on millennial journeys, comets should be plentiful given that the Oort Cloud may extend half the distance to Alpha Centauri. Terra goes on:
Little additional crushing or other mechanical processing of the dust would be necessary, and its fine, loose-grained structure would make it ideal for subsequent chemical processing and refining. Comet nuclei thus represent a vast reservoir of easily accessible materials: water, carbon dioxide, ammonia, methane, and a variety of metals and complex organics.
Energy by Starlight
Given that comets probably formed on the outer edges of the solar nebula, their early orbits would have been more or less in the same plane as the rest of the young system, but gravitational interactions with passing stars would have randomized their orbital inclinations, eventually producing a sphere of the kind Jan Oort first postulated back in 1950. Much of this is speculative, because we have little observational evidence to go on, but the major part of the cometary shell probably extends from 40,000 to 60,000 AU, while a projected inner Oort population extending from just beyond the Kuiper Belt out to 10,000 AU may have cometary orbits more or less in the plane of the ecliptic. Out past 10,000 AU the separation between comets is wide, perhaps about 20 AU, meaning that any communities that form out here will be incredibly isolated.
Image: An artist’s rendering of the Kuiper Belt and Oort Cloud. Credit: NASA/Donald K. Yeomans.
Whether humans can exploit cometary resources this far from home will depend on whether or not they can find sources of energy. In a paper called “Fastships and Nomads,” presented at the Conference on Interstellar Migration held at Los Alamos in 1983, Eric Jones and Ben Finney give a nod to non-renewable energy sources like deuterium, given that heavy elements like uranium will be hard to come by. Indeed, a typical comet, in Richard Terra’s figures, holds between 50,000 and 100,000 metric tons of deuterium, enough to power early settlement and mining.
But over the long haul, Jones and Finney are interested in keeping colonies alive through renewable resources, and that means starlight. The researchers talk about building vast mirrors using aluminum from comets, with each 1 MW mirror about the size of the continental United States. Now here’s a science fiction setting with punch, as the two describe it:
Although the mirrors would be tended by autonomous maintenance robots, the nomads would have to live nearby in case something went wrong… Although we could imagine that the several hundred people who could be supported by the resources of a single comet might live in a single habitat, the mirrors supporting that community would be spread across about 150,000 km. Trouble with a mirror or robot on the periphery of the mirror array would mean a long trip, several hours at least. It would make more sense if the community were dispersed in smaller groups so that trouble could be reached in a shorter time. There are also social reasons for expecting the nomad communities to be divided into smaller co-living groups.
Jones and Finney go on to point out that humans tend to work best in groups of about a dozen adults, whether in the form of hunter/gatherer bands, army platoons, bridge clubs or political cells. This observation of behavior leads them to speculate that bands of about 25 men, women and children would live together in a large habitat — think again of an O’Neill cylinder — built out of cometary materials, from which they would tend a mirror farm with the help of robots and computers. Each small group would tend a mirror farm perhaps 30,000 kilometers across.
The picture widens beyond this to include the need for larger communities that would occasionally come together, helping to avoid the genetic dangers of inbreeding and providing a larger social environment. Thus we might have about 500 individuals in clusters of 20 cometary bands which would stay in contact and periodically meet. Jones and Finney consider the band-tribe structure to be the smallest grouping that seems practical for any human community. Who would such a community attract — outcasts, dissidents, adventurers? And how would Oort Cloud settlers react to the possibility of going further still, to another star?
While by no means is this is a new theory, ( note the Jules Verne story ), it presents the scenario of the very slow spreading of intelligent biological life through-out the Galaxy ( see Slow Galactic Colonization, Zoo Hypothesis and the Fermi Paradox ).
Now here’s a thought; could a potential alien Oort Cloud civilization be the basis of the Ancient Astronaut Theory and the legends of the Sumerian Gods, the Anunnaki?
There’s no hard evidence of that of course, but there are Pluto-sized and larger objects in the Kuiper Belt glowing in the infrared, a sign that was said to represent a Dyson Sphere type civilisation.
Either these are natural objects such as Brown Dwarf stars, or potential alien civilisations whom don’t care whether they are detected in the infrared or not.
And that’s disturbing.
For about three hours on Wednesday, Voyager 1 had left the solar system — before a rewritten news release headline pulled it back in. Voyager 1, one of two spacecraft NASA launched in 1977 on a grand tour of the outer planets, is now nearly 11.5 billion miles from the Sun, speeding away at 38,000 miles per hour. In a paper accepted by the journal Geophysical Review Letters, William R. Webber of New Mexico State University and Frank B. McDonald of the University of Maryland reported that on Aug. 25 last year, the spacecraft observed a sudden change in the mix of cosmic rays hitting it.
Cosmic rays are high-speed charged particles, mostly protons. Voyager 1’s instruments recorded nearly a doubling of cosmic rays from outside the solar system, while the intensity of cosmic rays that had been trapped in the outer solar system dropped by 90 percent.
The American Geophysical Union, publisher of the journal, sent out the news Wednesday morning: “Voyager 1 has left the solar system.” NASA officials, surprised, countered with a contrary statement from Edward C. Stone, the Voyager project scientist. “It is the consensus of the Voyager science team that Voyager 1 has not yet left the solar system or reached interstellar space,” Dr. Stone said. He said that the critical indicator would be a change in the direction of the magnetic field, not cosmic rays, for marking the outermost boundary of the solar system. In their paper, Dr. Webber and Dr. McDonald (who died only six days after Voyager observed the shift in cosmic rays) did not claim that Voyager 1 was in interstellar space, but had entered a part of the solar system they called the “heliocliff.” The geophysical union then sent out another e-mail with the same article but a milder headline: “Voyager 1 has entered a new region of space.”
Eventually Voyager 1 will leave the Solar System and there will be no dispute about it.
In the meantime, mainstream science will learn and post about the outer edges of the Solar System as Voyager 1 creeps along at .00002 lightspeed ( 37,500 mph ) .
Of course there are those in mainstream media and science who believe that mankind will never leave the Solar System because they proclaim that spacecraft will never be built that go faster than that.
Already the Pluto probe New Horizon traveling at 54,500 mph is breaking Voyager’s speed record and will probably leave the Solar System before Voyager does!
I’m certain in 100 years star probes will be launched toward Alpha Centauri and Tau Ceti that reach appreciable percentages of lightspeed bypassing all of our old interplanetary probes and perhaps in several centuries, mankind’s interstellar colonies will be picking up these old probes to study them, like old time capsules!
Hat tip to the Daily Grail.
From Centauri Dreams:
The assumptions we bring to interstellar flight shape the futures we can imagine. It’s useful, then, to question those assumptions at every turn, particularly the one that says the reason we will go to the stars is to find other planets like the Earth. The thought is natural enough, and it’s built into the exoplanet enterprise, for the one thing we get excited about more than any other is the prospect of finding small, rocky worlds at about Earth’s distance from a Sun-like star. This is what Kepler is all about. From an astrobiological perspective, this focus makes sense, as we want to know whether there is other life — particularly intelligent life — in the universe.
But interstellar expansion may not involve terrestrial-class worlds at all, though they would still remain the subject of intense study. Let’s assume for a moment that a future human civilization expands to the stars in worldships that take hundreds or even thousands of years to reach their destination. The occupants of these enormous vessels might travel in a tightly packed urban environment or perhaps in a much more ‘rural’ setting with Earth-like amenities. Many of them would live out their lives in transit, without the ability to be there at journey’s end. We can only speculate what kind of social structures might emerge around the ultimate mission imperative.
Moving Beyond a Planetary Surface
Humans who have grown up in a place that has effectively become their world are going to find its norms prevail, and the idea of living on a planetary surface may hold little interest. Isaac Asimov once wrote about what he called ‘planetary chauvinism,’ which falls back on something Eric M. Jones wrote back in the 1980s. Jones believed that people traveling to another star will be far more intent on mining asteroids and the moons of planets to help them build new habitats for their own expanding population. Stephen Ashworth, a familiar figure on Centauri Dreams, writes about what he calls ‘astro-civilizations,’ space-based cultures that focus on the material and energy resources of whatever system they are in rather than planets.
Ashworth’s twin essays appear in a 2012 issue of the Journal of the British Interplanetary Society (citation below) that grew out of a worldship symposium held in 2011 at BIS headquarters in London. The entire issue is a wonderful contribution to the growing body of research on worldships and their uses. Ashworth points out that a planetary civilization like our own thinks in terms of planetary resources and, when looking toward interstellar options, naturally assumes the primary goal will be to locate new ‘Earths.’ A corollary is the assumption of rapid transport that mirrors the kind of missions used to explore our own Solar System.
Image: A worldship kilometers in length as envisioned by space artist Adrian Mann.
An astro-civilization is built on different premises, and evolves naturally enough from the space efforts of its forebears. Let me quote Ashworth on this:
“A space-based or astro-civilisation…is based on technologies which are an extension of those required on planetary surfaces, most importantly the design of structures which provide artificial gravity by rotation, and the ability to mine and process raw materials in microgravity conditions. In fact a hierarchical progression of technology development can be traced, in which each new departure depends upon all the previous ones, which leads ultimately to an astro-civilisation.
The technology development Ashworth is talking about is a natural extension of planetary methods, moving through agriculture and industrialization into a focus on the recovery of materials that have not been concentrated on a planetary surface, and on human adaptation not only to lower levels of gravity but to life in pressurized structures beginning with outposts on the Moon, Mars and out into the system. Assume sufficient expertise with microgravity environments — and this will come in due course — and the human reliance upon 1 g, and for that matter upon planetary surfaces, begins to diminish. Power sources move away from fossil fuels and gravitate toward nuclear and solar power sources usable anywhere in the galaxy.
Agriculture likewise moves from industrialized methods on planetary surfaces to hydroponic agriculture in artificial environments. Ashworth sees this as a progression taking our adaptable species from the African Savannah to the land surface of the entire Earth and on to the planets, from which we begin, as we master the wide range of new habitats becoming available, to adapt to living in space itself. He sees a continuation in the increase of population densities that took us from nomadic life to villages to cities, finally being extended into a fully urbanized existence that will flourish inside large space colonies and, eventually, worldships.
An interstellar worldship is, after all, a simple extension from a colony world that remains in orbit around our own star. That colony world, within which people can sustain their lives over generations, is itself an outgrowth of earlier technologies like the Space Station, where residence is temporary but within which new skills for adapting to space are gradually learned. Where I might disagree with Ashworth is on a point he himself raises, that the kind of habitats Gerard O’Neill envisioned didn’t assume high population densities at all, but rather an abundance of energy and resources that would make life far more comfortable than on a planet.
This reminds me of an old Analog article I read back in the 1970s by Larry Niven titled “Bigger Than Worlds” in which Niven gave several examples of structures that evolved into massive structures from interstellar vessels to Ringworlds and Dyson Sphere, all of which were safer than natural planets.
Of course this goes by the assumption if human goes by the “expansion” route, or the “evo devo” route proposed by Jon Smart.
(STARpod.us) — Imagine this, then pretend it isn’t real.
Professor Stephen Hawking was right, contact with an extraterrestrial alien civilization might be the end of us — but he was wrong about one thing: it is too late to avoid contact with ultra-intelligent extraterrestrial aliens.
They are here, now, and living with you, perhaps within you, in your home.
And their actions are utterly invisible.
Worse still, every human thought, every human response to this invisible terror is already known and is shared across an intergalactic telepathic mind-to-mind based Internet.
The above may sound like a science fiction tale, however the reality may be worse than our most feared imaginings.
To enter into this “Twilight Zone” of darkness we simply accept that the brief history of human scientific and technological evolution points to an ever-greater penetration of the human mind — and the probability, given the unfathomable vastness of eternity currently predicted by our best theories of the universe and beyond, of intelligent minds beyond our own.
Our deepest, inner thoughts and experiences are going to be turned inside out upon the world.
We enter this virtual reality with an understanding that an encounter with alien intelligence beyond our own is something we may not even recognize, if and when it happens.
And according to sources, some who have held high positions within the U.S. government, close encounters have already taken place.
It is this unseen, largely unheard and secret presence that haunts us like a secret society from the great beyond. Probing our actions — even before they are taken — the vast and disturbingly alien mind behind this unstoppable terror of invisible things surrounds us, watching and waiting, like an invisible guardian in a cosmic conspiracy written eons before our time.
The cover story for contact with this deeply disturbing intelligence was written in Hollywood: extraterrestrial biological entities arrived on Earth in flying saucers and maybe they even crashed a disk or two, which were later recovered by the government.
It is this wrap-over story that has been spread by a handful of former CIA-types including the recent revelation by Chase Brandon. According to Brandon, bodies and wreckage (presumably of an extraterrestrial alien origin) were indeed recovered in Roswell, New Mexico. Others have hinted of some deeply buried truth underlying the saucer tales, based upon hearsay from their more senior colleagues in intelligence. And this, so we are told, goes all the way to the top, coming from at least a handful of former CIA Directors.
But is there really any truth in the tales? At a minimum, we should begin our exploration of the unstoppable terror of invisible things with a brief examination of down-to-earth technologies from human sources. We will, for the time being, ignore that other Hollywood-inspired meme claiming the most advanced human technologies of the 21st century owe their existence to reverse engineered extraterrestrial technology.
There are other stories of possible relevance, tales of invisible things that sometimes show their face in brief and mysterious ways. They sometimes seem to speak to select groups of human beings, in particular scientific types, using a form of direct mind-to-mind communication.
Mental radio has been an essential element of the pop culture for decades, and once again appears to be just another meme invented in the fantasy of a Hollywood writer’s imagination. The situation is further complicated by the countless number of persons who have self-experimented on the core physical structure of the human mind — the brain — by ingesting a wide variety of chemical substances known to create hallucinatory effects.
Invisible things do not always remain visible: there are other stories and sometimes grainy and poorly photographed images of manifestations of unusual phenomena popping in and out of our consensus reality. Other highly questionable reports include observations of ordinary material objects moving under the force of an unseen source. Several persons I know have related to me stories of so-called psychokinetic motion, including one person who told me of a misadventure involving knives that were picked up off of a table and flung with extreme force into the wall. In this particular story, it was reported that the environment changed mysteriously prior to the psychokinetic event, and even space and time seemed distorted in some inexplicable manner.
Psychokinesis was once a concern for American intelligence agencies and their political handlers in Congress (and this is confirmed within the declassified government record). Once upon a time they even feared psychokinetic hacking of America’s missile arsenal launch codes.
Invisibility is no longer bound to the imaginative world of sorcerer Harry Potter. As physicists look deeper into the nature of quantum reality they are gradually realizing new and clever ways around what was once assumed to be insurmountable obstacles. The late Arthur C. Clarke, author of “2001: A Space Odyssey” is often referenced for having said any sufficiently advanced technology appears (on the surface to those who do not understand it) to be magic.
Cracking through the barriers of human ignorance and human fantasy does not come easily. But if we are indeed facing an unstoppable terror of invisible things — real, physical forces under intelligent guidance — then we need to prepare a response.
We are challenged in this effort by the anthropocentric nature of the human mind: Is is really possible to envision truly alien sources and methods? Or are we confined to describing the extraterrestrial alien droning of America?
Bekkum makes many valid points about possible alien interference with we human beings on Earth; the most important point is the immaterial way the interference would take place. No flying saucers, triangles or spheres need apply.
Remote control of human beings, i.e., possession, ( or avatars ) via of “mental telepathy” for lack of a better term, would be preferable to outright invasion and destroying turf. Especially if proxy colonization or species manipulation is part and parcel of the alien’s overall strategies.
Habitability is the measure of highest value in planet-hunting. But should it be?
Kepler and the other planet-finding missions have begun to bear fruit. We now know that most stars have planets, and that a surprising percentage will have Earth-sized worlds in their habitable zone–the region where things are not too hot and not too cold, where life can develop. Astronomers are justly fascinated by this region and what they can find there. We have the opportunity, in our lifetimes, to learn whether life exists outside our own solar system, and maybe even find out how common it is.
We have another opportunity, too–one less talked-about by astronomers but a common conversation among science fiction writers. For the first time in history, we may be able to identify worlds we could move to and live on.
As we think about this second possibility, it’s important to bear in mind that habitability and colonizability are not the same thing. Nobody seems to be doing this; I can’t find any term but habitability used to describe the exoplanets we’re finding. Whether a planet is habitable according to the current definition of the term has nothing to do with whether humans could settle there. So, the term applies to places that are vitally important for study; but it doesn’t necessarily apply to places we might want to go.Whether a planet is habitable according to the current definition of the term has nothing to do with whether humans could settle there.
To see the difference between habitability and colonizability, we can look at two very different planets: Gliese 581g and Alpha Centauri Bb. Neither of these is confirmed to exist, but we have enough data to be able to say a little about what they’re like if they do. Gliese 581g is a super-earth orbiting in the middle of its star’s habitable zone. This means liquid water could well form on its surface, which makes it a habitable world according to the current definition.
Centauri Bb, on the other hand, orbits very close to its star, and its surface temperature is likely high enough to render one half of it (it’s tidally locked to its sun, like our moon is to Earth) a magma sea. Alpha Centauri Bb is most definitely not habitable.
So Gliese 581g is habitable and Centauri Bb is not; but does this mean that 581g is more colonizable than Bb? Actually, no.
Because 581g is a super-earth, the gravity on its surface is going to be greater than Earth’s. Estimates vary, but the upper end of the range puts it at 1.7g. If you weigh 150 lbs on Earth, you’d weigh 255 lbs on 581g. This is with your current musculature; convert all your body fat to muscle and you might just be able to get around without having to use leg braces or a wheelchair. However, your cardiovascular system is going to be under a permanent strain on this world–and there’s no way to engineer your habitat to comfortably compensate.
On the other hand, Centauri Bb is about the same size as Earth. Its surface gravity is likely to be around the same. Since it’s tidally locked, half of its surface is indeed a lava hell–but the other hemisphere will be cooler, and potentially much cooler. I wouldn’t bet there’s any breathable atmosphere or open water there, but as a place to build sealed domes to live in, it’s not off the table.
Also consider that it’s easier to get stuff onto and off of the surface of Bb than the surface of a high-gravity super-earth. Add to that the very thick atmosphere that 581g is likely to have, and human subsistence on 581g–even if it’s a paradise for local life–is looking more and more awkward.
Doubtless 581g is a better candidate for life; but to me, Centauri Bb looks more colonizable.
A definition of colonizability
We’ve got a fairly good definition of what makes a planet habitable: stable temperatures suitable for the formation of liquid water. Is it possible to develop an equally satisfying (or more satisfying) definition of colonizability for a planet?
Yes–and here it is. Firstly, a colonizable world has to have an accessible surface. A super-earth with an incredibly thick atmosphere and a surface gravity of 3 or 4 gees just isn’t colonizable, however much life there may be on it.
Secondly, and more subtly, the right elements have to be accessible on the planet for it to be colonizable. This seems a bit puzzling at first, but what if Centauri Bb is the only planet in the Centauri system, and it has only trace elements of Nitrogen in its composition? It’s not going to matter how abundant everything else is. A planet like this–a star system like this–cannot support a colony of earthly life forms. Nitrogen is a critical component of biological life, at least our flavour of it.
In an article entitled “The Age of Substitutibility”, published in Science in 1978, H.E. Goeller and A.M. Weinberg proposed an artificial mineral they called Demandite. It comes in two forms. A molecule of industrial demandite would contain all the elements necessary for industrial manufacturing and construction, in the proportions that you’d get if you took, say, an average city and ground it up into a fine pulp. There’re about 20 elements in industrial demandite including carbon, iron, sodium, chlorine etc. Biological demandite, on the other hand, is made up almost entirely of just six elements: hydrogen, oxygen, carbon, nitrogen, phosphorus and sulfur. (If you ground up an entire ecosystem and looked at the proportions of these elements making it up, you could in fact find an existing molecule that has exactly the same proportions. It’s called cellulose.)
Thirdly, there must be a manageable flow of energy at the surface. The place can be hot or cold, but it has to be possible for us to move heat around. You can’t really do that at the surface of Venus, for instance; it’s 800 degrees everywhere on the ground so your air conditioning spends an insane amount of energy just overcoming this thermal inertia. Access to a gradient of temperature or energy is what makes physical work possible.
Obviously things like surface pressure, stellar intensity, distance from Earth etc. play big parts, but these are the main three factors that I can see. It should be instantly obvious that they have almost nothing to do with how far the planet is from its primary. There is no ‘colonizable zone’ similar to a ‘habitable zone’ around any given star. The judgment has to be made on a world by world basis.
Note that by this definition, Mars is marginally colonizable. Why? Not because of its temperature or low air pressure, but because it’s very low in Nitrogen, at least at the surface. The combination of Mars and Ceres may make a colonizable unit, if Ceres has a good supply of Nitrogen in its makeup–and this idea of combo environments being colonizable complicates the picture. We’re unlikely to be able to detect an object the size of Ceres around Alpha Centauri, so long-distance elimination of a system as a candidate for colonizability is going to be difficult. Conversely, if we can detect the presence of all the elements necessary for life and industry on a roughly Earth-sized planet, regardless of whether it’s in its star’s habitable zone, we may have a candidate for colonizability.
The colonizability of an accessible planet with a good temperature gradient can be rated according to how well its composition matches the compositions of industrial and biological demandite. We can get very precise with this scale, and we probably should. It, and not habitability, is the true measure of which worlds we might wish to visit.
To sum up, I’m proposing that we add a second measure to the existing scale of habitability when studying exoplanets. The habitability of a planet actually says nothing about how attractive it might be for us to visit. Colonizability is the missing metric for judging the value of planets around other stars.
This raises the ethical question of at which point do we as a race change the environment of an alien world’s biology in order to suit our needs?
Do we engage in biological genicide to seed a planet with Earth-life, or do we adapt ourselves to suit the exoplanet’s environment?
Or do we move on to another planet that is more “colonizable” as Schroeder suggests and totally build a habitat from scratch?
Hat tip to Centauri Dreams.