A planet with twice Earth's gravity produces creatures with different skeletal requirements, different muscular architecture, ...

Scientists suggest that advanced aliens might not have physical bodies, challenging traditional views of extraterrestrial ...

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

A look at the idea of searching for signs of pollution beyond Earth.

Alien director Ridley Scott eventually returned to the franchise, but couldn't complete his ambitious plans. Here's what his ...

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, ...

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

Dungeon Crawler Carl has taken the world by storm. Matt Dinniman's science fiction novel, in addition to topping best-seller ...

What if consciousness isn’t limited to brains like ours? Philosophers Eric Schwitzgebel and Jeremy Pober argue 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.

A biologist specializing in invasive species has partnered with a former Pentagon strategist in pushing NASA to construct a ...

A column by Winona LaDuke, an Ojibwe writer and economist on Minnesota’s White Earth Reservation. She also is co-curator of ...