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

It's the oldest question on Earth. Where did we come from? Some people may thank a creator from above, but what if the hand that created humanity wasn't divine? What if aliens brought life to Earth?

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

The face was spotted at a remote region in the southeast of the continent. The mysterious figure can be found on Google Maps ...

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

A peculiar satellite image of Antarctica has sparked fresh debate over the existence of extraterrestrial life. A Google Earth ...

CAPE CANAVERAL, Fla. — Asteroid samples fetched by NASA hold not only the pristine building blocks for life but also the salty remains of an ancient water world, scientists reported Wednesday.

Pet’s Dislikes: Baths, getting his nails clipped, and going to the vet. He also hates to be left alone.

The androgynous alien Ziggy Stardust - alter ego of David Bowie - landed to Earth with a bang on the gloomy streets of London. Here we unpick the iconic cover ...

Samples from asteroid Bennu have delivered insights into the origins of Earth’s water and the organic molecules that may have ...

The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...