When it comes to the search for life elsewhere in the universe, methane and other chemical compounds are seen as signs of ...

Project Hail Mary, Solaris, and The Hitchhiker's Guide to the Galaxy are all among the very best sci-fi books set in space.

New research shows that Earth's oceans are warming quickly. NPR's Ayesha Rascoe speaks with oceanographer Brad deYoung about the record-breaking rise in marine temperatures.

Starfleet encounters​​​. Whether it's the warlike Klingons, the logic-seeking Vulcans, or the alluring Orions, the Star Trek ...

A siphonophore—a colonial marine invertebrate related to the venomous stinging Portuguese Man-o-war—is scanned using Deep ...

NPR's Scott Simon asks Kathleen Rooney about her book, "Man Overboard!," and about finding the energy to overcome doubt.

A Harvard University cosmologist who has suggested alien life forms could be sailing into the solar system disguised as meteors is leading the Trump administration’s secretive new scientific advisory ...

A polarizing Harvard astronomer known for splashy theories about alien visits has been tapped by the Trump administration to lead a team of outside scientists to study the national security risks ...

Avi Loeb, a Harvard astronomer who has made headlines with his theories about alien encounters, will lead a White House ...

Beneath the surface lies an alien ocean packed with bizarre survival strategies, terrifying hunters, and creatures unlike anything on Earth. This deep dive explores the biology behind one of gaming's ...

Add Yahoo as a preferred source to see more of our stories on Google. Alien first-contact stories are a classic of science fiction, and they’re all the more fascinating because they can feel like ...

When I look at the night sky, I don’t wonder whether alien life is somewhere out there; I think it probably is. Considering the sheer number of stars in the cosmos, and the possibly larger number of ...