Mars has become a magnet for claims about strange structures, mysterious objects and possible evidence of alien civilisations. The planet's surface has countless rocks, cliffs, cavities and fractures; ...

It's one of the biggest unanswered questions in science - if there are aliens out there, where are they hiding? Now, ...

A group of experts provided their own estimates as to when actual proof of alien life will be discovered. According to the scientists, it is possible that traces of alien life will be found on Mars or ...

A strange rock formation captured in NASA rover footage has ignited fresh viral speculation regarding alien life on the Red Planet, after a prominent UFO researcher pointed out what appears to be a ...

Add Yahoo as a preferred source to see more of our stories on Google. Mars "pyramid" shape from above (NewsNation) — Images of a pyramid-like shape on the surface of Mars are propelling theories that ...

From lava tubes on Mars to ice pockets on Europa, subterranean environments may offer the best chance of finding life—and living safely—beyond our planet. “I was like, ‘OK, I'm pretty sure that ...

Did the American space agency just release the photo of an alien from Mars? This question has been buzzing online after social media users spotted a strange looking object in a photo shared by the ...

A NASA mars rover image has sparked wild claims from a UFO researcher that it shows an unexploded alien missile on Mars. NASA - by Dr. Carol Stoker, NASA Ames Research Center, Public Domain, via ...