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Extraterrestrial life

At Retraction Watch: “Transparently absurd” paper at Elsevier

Retraction Watch: Erm, about that concerning peer review process. Elsevier also was the publisher of the equally risible book chapter claiming that COVID-19 came to earth on a meteorite. Read More ›

Researchers: The space aliens are indeed Out There! But they’re “lyfe,” not life

From The Guardian: The two researchers say there are “sublyfe” systems that only meet some of these criteria, and also perhaps “superlyfe” that meets additional ones: lyfe forms that have capabilities beyond ours and that might look on us as we do on complex but non-living processes such as crystal growth. Read More ›

Physicists: Life forms could flourish in the interior of stars

This would seem to be string theory’s contribution to biology: At a time when we haven’t yet located fossil bacteria on Mars (of which there is at least a plausible hope), we are asked to accept that there might be formations within stars that we would not identify as life but really are. String theory is then about as fruitful in biology as it is in cosmology. Read More ›

Could bacteria have survived a trip from Earth to Mars?

Some see this as evidence that the universe is teeming with life on numberless planets. But what if we find fossil bacteria on Mars with genetics eerily similar to the ones we have on Earth? That could end up undermining such claims. But we shall see. Read More ›

Yet another reason the space aliens are not here

Their evil robots killed them: = The Berserker Hypothesis: "There have been a number of variations on this argument, such as cosmologist Edward Harrison. In 1981, he argued that an advanced species that has overcome its own self-destructive tendencies might be motivated to create Berserker probes out of a sense of self-preservation." Read More ›

Ethan Siegel enumerates what we might find, re life on Mars

Siegel: It’s the ultimate nightmare of astrobiologists: that there’s a fascinating history of life to uncover on another world, but we’ll contaminate it with our own organisms before we ever learn the true history of life on that world. Read More ›

Could COVID-19 help us understand the current buzz in science media about space aliens?

It’s worth noting that we haven’t established that there are even fossil bacteria on Mars. But we are starting to hear more than ever that there are intelligent aliens out there, most recently from Ars Technica and Scientific American. Fundamentally, we have found nothing since the Sixties that truly suggests extraterrestrial civilizations. Nothing. If they want to keep looking, fine. Nobody’s stopping them. But spare us the dramatics. Read More ›

The New York Times runs an “aliens are maybe real” story

There are many total mysteries out there. We need more to go on than mere mystery to take aliens seriously. One remembers the astronomer who convinced himself recently that space detritus Oumuamua was an extraterrestrial light sail and accused the rest of us of being too dumb to see that. Read More ›