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

The big-idea explorers at Aperture hunt for extraterrestrial life using the precise reasoning of the Drake Equation.

Europa looks like a frozen, lifeless moon — but beneath its shattered ice, scientists think there may be a vast saltwater ...

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

We have no idea what kind of life may exist on other planets, so it’s hard to know what to look for. Proxima Kósmos imagines ...

NASA's Curiosity Mars rover took this selfie at a location nicknamed "Mary Anning" after a 19th century English ...

Scientists say caves on Mars and icy moons may host microbial life and serve as future habitats for astronauts to be sent to ...

In the town forever linked to a crashed object in 1947, belief has become an industry – and disbelief almost beside the point ...

It was a record-breaking mission, propelling humans a quarter of a million miles into the universe and around the Moon for ...

Max Planck Institute for Extraterrestrial Physics scientists have been able to disentangle the X-ray glow originating in our ...

This doesn't devalue scientific research thus far, but we might need a more unified approach for cleaning important samples, ...

Analysis of Martian meteorites identified contamination from tools and handling, underscoring risks of misinterpretation, and ...