There might be alien life on a nearby moon, scientists say - Saturn’s companion Enceladus has long been a particularly ...

When scientists search for alien life, they usually look for planets that resemble Earth. The reasoning is simple. Every known living thing depends on liquid water, carbon based chemistry, and the ...

Previous research has shown that complex multicellular organisms could only reproduce in temperatures up to 140 degrees.

The TV series Alien:Earth has introduced a number of new creatures to the much loved, albeit terrifying, Alien franchise. But how realistic are the new aliens? That's a question that we—a trio of ...

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 ...