Scientists have found a hidden biosphere stretching miles beneath Earth’s surface and as deep as 6 miles below the seafloor.

Scientists may have just taken one of the biggest steps yet in the search for life beyond Earth. Meet K2 18 b, a distant ...

A Stanford scientist's model suggests many small rocky planets can't sustain atmospheres, potentially explaining the scarcity ...

Researchers have looked at how particular microbes from Earth would fare in conditions like those of Mars, the moon, and the ...

What if consciousness isn’t limited to brains like ours? Philosophers Eric Schwitzgebel and Jeremy Pober argue that ...

NASA's Perseverance rover has uncovered one of the most intriguing clues yet in humanity's search for life beyond Earth.

Steven Spielberg's claims that aliens have already visited Earth have drawn a mixed but pointed scientists' reaction this week, with astrophysicists in the UK and Australia stressing that while ...

And if aliens made of different stuff potentially possess consciousness, then why not minds made of silicon, metal, and ...

Scientists propose building a lab on the moon to screen Mars and other space samples for alien microbes before they ever ...

Well, as a matter of fact, I have often had close encounters with aliens, only I never bothered to mention it here. For this ...

Harvard astronomer Avi Loeb, famed and criticized for alien theories, will lead a Trump-era outside science team probing UAP ...