Alien life may be hiding much closer to home than science fiction would have us believe, according to a particle physicist ...

Imagine a world covered in thick ice, hiding an ocean bigger than all of Earth's seas combined. That is Jupiter's moon Europa, long hailed as one of the best bets for alien life in our solar system.

For decades, the search for life beyond Earth has revolved around a key question: What molecules should scientists be looking ...

Researchers found biological samples display unique molecular diversity patterns absent in nonliving chemistry.