Ancient Greeks believed in alien life, as well as in gods, souls, and beings that inhabited the Moon, stars, and Heavens.

A new study suggests alien life may be easier to detect through clusters of similar planets rather than single biosignatures.

An interstellar comet changed its chemistry after passing the Sun, revealing hidden layers and a surprising mix of carbon ...

Researchers have developed a technique for detecting and measuring the concentration of many rare-earth elements in plants, ...

Quick Take The octopus is one of Earth's strangest and most remarkable creatures. These marine invertebrates have a variety ...

Behind the acid blood and jump scares of the Alien franchise is an even more insidious horror: a single employer with ...

Aristotle's views on the nature of the cosmos dominated the Ancient Greek world. He argued that there's only one world, at ...

A new study proposes detecting life in space by spotting patterns across many planets instead of focusing on one at a time.

Usually, comets are dormant blocks of rock and ice. They only wake up when they get close to a star. The intense heat causes ...

From lava tubes on Mars to ice pockets on Europa, subterranean environments may offer the best chance of finding life—and ...

The astronauts of Artemis II mission splashed down off the coast of San Diego on Friday, April 10 ...

Over four decades, the Alien franchise has brought many different versions of the xenomorph creature to theaters.