A new study suggests alien life may be easier to detect through clusters of similar planets rather than single biosignatures.

We have no idea what kind of life may exist on other planets, so it’s hard to know what to look for. Proxima Kósmos imagines ...

Aristotle's views on the nature of the cosmos dominated the Ancient Greek world. He argued that there's only one world, at ...

Ancient Greeks believed in alien life, as well as in gods, souls, and beings that inhabited the Moon, stars, and Heavens.

Reverse-engineering the billion-year-old enzyme nitrogenase clued researchers into how life originally formed on Earth — and ...

The search for life on other planets relies, for lack of a better alternative, on what we know on Earth. However, this ...

It’s not little green men with flying saucers and laser guns that scientists are worried about, instead our foes will be much ...

New research suggests scientists can search for life beyond Earth by studying patterns across many planets instead of relying ...

What if life on other planets doesn’t breathe oxygen at all? Scientists are beginning to rethink one of the biggest ...

At least 10 scientists tied to sensitive U.S. research have died or disappeared in recent years, sparking a federal ...

The search for life beyond Earth has followed a familiar logic: find a rocky planet orbiting in the habitable zone, where ...

NASA's Curiosity rover has identified seven new organic compounds on the planet Mars, according to new research published in ...