Scientists say the findings of the new study may make future searches for extraterrestrial intelligence faster and more ...

The size of a planet is a major factor that determines if life can gain a foothold on it, even if it's in the habitable zone ...

Barnard’s Star hosts four hostile small planets whose unusual chemistry and orbital rhythm reveal how compact planetary ...

Humans have been searching the stars for alien radio signals for decades — and so far, E.T. has not phoned home. But that doesn’t mean intelligent life isn’t out there, a new study hints. Rather, ...

Geeks rejoice. A new study suggests that if extraterrestrial life exists, it’s likely being lived on this exoplanet.

A rocky world orbiting within its star’s habitable zone may be surrounded by a helium-rich atmosphere, providing the ...

If you were hoping we’d find alien life hanging out on a cozy, pint-sized planet anytime soon, then you should know that ...

Astronomers find planet that is shockingly like Earth in huge milestone for search for aliens - First ever discovery of its ...

Planets orbiting stars beyond the solar system come in all shapes and sizes but mostly fit into a few categories: large and hot gas giants, super-Earths that are slightly larger than our planet, ...

The nature of space, time and the evolution of life on Earth mean it’s unlikely extraterrestrial life has visited our home planet.