This video explores the uncomfortable possibility that the biggest obstacle in finding alien life is not distance, but ...

Is alien life really out there? For decades, humanity has looked at the night sky and asked the same question. Now, according ...

A new study suggests Earth may have been sending tiny hitchhikers to Venus for billions of years. Researchers found that asteroid impacts could launch microbes into space, where some might survive the ...

The recent discovery of an enigmatic substance on the surfaces of both Titan, Saturn’s largest moon, and Pluto, our solar ...

As much as Steven Spielberg likes aliens, he seems to prefer holding them at arm’s length. The creatures in Close Encounters ...

An instrument on the Perseverance rover has identified large, complex carbon compounds alongside unusual patterns on the ...

A Stanford scientist's model suggests many small rocky planets can't sustain atmospheres, potentially explaining the scarcity ...

A new exoplanet model screens rocky worlds by their ability to retain atmospheres over geologic timescales, helping narrow ...

With the release of Disclosure Day, Steven Spielberg’s new film about aliens, a question as old as science fiction itself ...

American Religious Belief in Extraterrestrial Life (Princeton Univ., Sept.) argues that several American religious traditions have long believed in that aliens exist—and want to help us.

Jupiter and Venus put on a spectacular performance as they met in the twilight sky on June 9 during a close planetary conjunction as Mercury lurked nearby — and we've got the photos to prove it! The ...

Stargazers will be treated to a "kissing conjunction" in the sky tonight. The two planets involved in the spectacle are Venus and Jupiter. You can see the planetary duo shortly after sunset tonight.