Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.

What if an alien species had a complete evolutionary history stretching billions of years? This deep dive explores the Yaetuans, from microscopic lifeforms to a civilization capable of reaching the ...

Theological debates suggest alien encounters might challenge religious traditionalists more than dismantle faith.

With the release of Disclosure Day, Steven Spielberg’s new film about aliens, a question as old as science fiction itself resurfaces: if aliens were to arrive on Earth, would they come to conquer us, ...

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

Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals . Unexplained gases on other planets. Things mistaken for UFOs ...

You might think that legendary sci-fi author Arthur C. Clarke would've adored the Star Trek franchise, but that wasn't ...

Teetering near endangered status, the starlet sea anemone produces “an ancient mechanism” for fighting viruses that ...

A mind wrapped in skin and bone can feel like the obvious model for consciousness. But that assumption may say more about where you live than about what consciousness really requires.

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 ...

Anyone with even a passing interest in Earth’s beauty might feel jealous of Lewis’s sojourn with plentiful tortoises, iguanas ...