Aliens exist - they just haven't visited Earth, NASA veteran Dr Gentry Lee has claimed.

There's a definite buzz going around this month about aliens from other worlds, or hadn't you noticed? Former US President ...

Planet K2-18b, an apparent water world 124 light years away, has been seen as a promising location in the search for aliens, ...

Add Yahoo as a preferred source to see more of our stories on Google. If we were to ever find alien life, breaking the news to the general public could be much more difficult than one might think. We ...

If life ever existed on Mars, it might have looked like microfossils right here on Earth.

Scientists have finally discovered how amino acids essential for life formed on the 4.6-billion-year-old asteroid Bennu.

Compared to previous theories, the current research emphasizes the complexity of the biological and chemical processes that brought about life.

While idea may violate Occam’s razor, “it remains a speculative but logically open alternative,” says biologist Robert Endres.

Is water enough to find alien life? New research reveals phosphorus and nitrogen are crucial. Discover the 'chemical ...

The World is not Enough and, therefore, let’s grab the moon! Heading Towards the Moon with a Vengeance We set foot on the ...

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...

The term "space opera" refers to a subgenre of science fiction, which often involves interplanetary or intergalactic wars between opposing factions. Other elements include romance, melodramatic ...