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

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

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

On the fictional planet Veteris, creatures blur every line between plant and animal — walking flowers, photosynthetic ...

Looking ahead: Existing radio surveys may contain signals that were never recognized as potential technosignatures. New ...

For a world to maintain an atmosphere long enough for life to gain a foothold, it seems it needs to be at least as big as ...

A Durham University survey reveals 86% of astrobiologists believe alien life likely exists, despite no confirmed evidence.

Three centuries into a fictional future, the first human explorers land on an alien world home to 300-foot land giants, ...

A rocky exoplanet 48 light-years from Earth has offered the 'strongest evidence yet' that other planets besides Earth could ...

Astronomer Dr. Collin Cherubim and his team have detected an atmosphere around an extrasolar planet, LHS 1140-b. The sphere ...

A nearby planet may be more Earth-like than previously thought, with new data suggesting that it may be a strong candidate for habitability.

Buckle up, this is a high-concept twist.