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Extraterrestrial life

An astrobiologist suggests changing how we search for alien life

Walker: “A popular definition that “life is a self-sustaining chemical system capable of Darwinian evolution” excludes any organisms that can’t reproduce because they are not capable of evolution—therefore mules and many senior citizens are excluded if you read the definition too strictly.” Read More ›

From the “They’re Out There” files: New Scientist cautious on that strange radio signal

These are curious times in science, as fact and reason appear less attractive every day to just the people one would expect to value them and people who might have been able to get away with tabloid news show more sense instead. Read More ›

We are now told of radio emissions from an alien world…

Like space junk Oumuamua, it’ll almost certainly turn out to be nothing. So why … ? It’s a legitimate question, at this point, whether “science” is just cultural territory now—a way of saying that one is Woke, Cool, and progressive. Depending on where you work, no actual results may be required. Read More ›

It turns out! Not only was space junk Oumuamua an “extraterrestrial lightsail” but our whole universe might be an alien’s experiment!

The stuff that comes out of Harvard these days and gets published in Scientific American used to be tabloid news. What has changed? Read More ›

Apparently, Earth is STILL rare

Andrew Zic: But given Proxima Centauri is a cool, small red-dwarf star, it means this habitable zone is very close to the star; much closer in than Mercury is to our Sun.” That would mean those planets would be “sterilised” by dangerous ionising radiation that came from their Sun. Read More ›

Astronomer: I think aliens are out there but sightings claims aren’t persuasive

There may or may not be other intelligent life forms out there. As it happens, we may be in a position to get hard evidence in the next century. But there is no time where it more pays to be sceptical than a time when we could get genuine information. Or not. Read More ›

What should we look for, seeking life on other planets?

Researcher's view: "it’s more than likely that the chemistry that led to the existing biology on Earth is no longer evident in the biochemistry we see. This means it may be impossible to reverse engineer what prebiotic chemistry on early Earth—or another planet—might have looked like solely from the life that’s present today. " Read More ›

So fine tuning of the universe for life goes right down to the level of the atom?

Our universe seems fine-tuned for life to come into existence, as Michael Denton stresses. If so, life may indeed inhabit other planets. If people believe that there is intelligent life on other planets in the galaxy, the best theory to support it, absent evidence at present, is intelligent design. Read More ›

Life is rare in the universe—IF there is no design

It would make a lot of sense for astrobiologists to be fans of intelligent design theory. Eventually, they will fall and hit their heads and realize that. Read More ›

SETI is really one big fat design inference

The Search for Extraterrestrial Intelligence (SETI) folk should induct ID theorist Bill Dembski into their Hall of Fame because he literally wrote the book on The Design Inference and that's the idea that keeps them going. Read More ›

A NASA astrobiologist’s bold suggestion: Let’s make ET ourselves

Astrobiologist: What if a significant percentage of those planets and moons require only a few hundred kilogrammes of ‘the right chemical stuff’ to spark their own, unique biotic revolutions? Read More ›