HD 20794 d completes its orbit just shy of two Earth years, placing it well within reach of conditions that might harbor life ...

Earth is home to some truly bizarre and breathtaking landscapes — here are 20 that look straight out of an alien world.

A U.S. scientist searching for a civilization across 7 Earth clones circling the red dwarf star TRAPPIST-1 says its own alien ...

In February 1995, a small research organization known as the SETI Institute launched what was then the most comprehensive ...

After Gallifrey, Doctor Who’s most well-known alien planet is Skaro, home of the Daleks. But something that doesn’t come up ...

Earlier this week we got a new teaser for Alien: Earth, an upcoming FX series set in the expansive sci-fi universe. It shows ...

Well, we could be closer to discovering whether there really is alien life out there after researchers discovered a new 'super-Earth' which is six times bigger than our planet and may well inhabit ...

Asteroid samples fetched by NASA hold not only the pristine building blocks for life but also the salty remains of an ancient ...