Extraterrestrial Life (no UFOs)
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A twine for anything related to extraterrestrial life and astrobiology, from SETI, Fermi's Paradox, and the search for Earth-like planets to life on Mars or elsewhere in the solar system and speculations on the biological requirements for extraterrestrial life.
This twine is NOT for anything related to UFOs.
This twine is NOT for anything related to UFOs.
Recent Activity
Items
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Overcoming Bias : Pondering PanspermiaPondering Panspermia Over the last few days I’ve neglected my duties to obsessively browse the last seven years of three journals: Astrobiology, International Journal of Astrobiology , and Origins of Life . In the process I’ve become converted to a more expansive version panspermia – life ...
Calvin Smith
added
2 weeks ago
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Overcoming Bias : A Galactic GardenA Galactic Garden In August I wrote : A few years ago PCW Davies persuasively argued that Earth life more likely started on Mars. Last year, Napier and coauthors argued that comets are an even more likely source: A single comet of radius 10 km and 30% volume fraction of clay contains ...
Calvin Smith
added
2 weeks ago
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NASA - Exoplanet House of HorrorsAstronomers may be closer than ever to discovering a planet that’s habitable like our own, but along the way they’ve discovered some very scary exoplanets – places where conditions are far too harsh for life as we know it to exist. We’ve rounded up some of the most frightening, deadly ...
Calvin Smith
added
3 weeks ago
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Detecting Life-Friendly MoonsForty years ago, the Apollo astronauts traipsed across our Moon, making it "inhabited" for the first time – albeit for only two and half hours. A bona-fide habitable moon has never been found, but astronomers are considering how we might find one around distant stars. "I think exomoons are ...
Calvin Smith
added
3 weeks ago
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Searching for Alien Life, on EarthIf you spend an afternoon walking along the muddy shore of Mono Lake, with the eastern flank of the Sierra Nevada mountains looming majestically in the background, you’ll no doubt discover, as others have before, that it is a place of bizarre natural beauty. But if you spend your afternoon ...
Calvin Smith
added
6 weeks ago
Comments
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BBC NEWS | Science & Environment | Galaxy has 'billions of Earths'" could be one hundred billion Earth-like planets in our galaxy." That is why searching is still going one. Find out what *really* exists. This is just reporting what the latest information and best extrapolations indicate. That is all it is. That is all it *says* it is.Phil Duby added 8 months ago
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14BBC NEWS | Science & Environment | Galaxy has 'billions of Earths'But show me just one that does. Count the doubtful words in this short description - could, just, very few, however, roasting, estimated, probably, most likely... No positive facts whatsoever. Just assumptions. Nothing to come close to "billions of..."Murray Peat added 8 months ago
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Majestic Documents.com: Evidence We Are Not AloneI think we just hit UFO territory. Does not belong in this twine.Phil Duby added 11 months ago
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YouTube - Astrobiology 2008 - InfotainmentHey man, I really like this video. We made a political rap: http://www.youtube.com/watch?v=Xxz29TLcjaw
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Started Jul. 24, 2008
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