NASA officials have previously spoken of the possibility of extraterrestrial life amid scientific uncertainty while ...

The search for alien life often sparks the imagination with images of extraterrestrial beings and strange worlds. However, a new theory is shifting the focus—what if life elsewhere in the universe ...

Can desert planets with alien life, like the one in the movie *Dune*, exist? Scientists’ answer leans toward “no.” A study ...

Tiny life forms tucked into debris from an asteroid hit could catapult to other planets—including Earth—and survive, a new Johns Hopkins University study finds. The work demonstrates that a certain ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Over the past decade, scientists have come up with a variety of frameworks to guide ...