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 ...

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

Aristotle believed the planets revolved around Earth and God could not have created other worlds. Today, scientists scour the ...

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

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

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

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

If forced to choose one descriptor for the octopus, the best word may be "otherworldly." These truly amazing marine animals ...

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

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

Scientists reveal how waves behave on alien planets, from towering methane seas on Titan to nearly still lava oceans on ...

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