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

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 ...

The possibility of life on other planets is one of the biggest mysteries in science. But what would happen if we actually ...

The size of waves on alien worlds will depend as much on the characteristics of the liquid as well as the gravity.

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 ...

Finding life on Mars might be closer than we thought. NASA’s Curiosity rover has yielded promising data from the Red Planet, ...

The Artemis 2 moon astronauts said they gained a deeper understanding of their Orion capsule —and what they learned bodes ...

NASA needs new space suits to land astronauts on the moon by 2028, but development is behind and in danger of slipping ...