While aliens in science fiction hop between planets on vast spaceships, scientists say real-life extraterrestrials might take ...

NASA's Curiosity Mars rover discovered these bumpy, pea-sized nodules while exploring a region filled with boxwork formations ...

A new NASA analysis concludes that it is "reasonable to hypothesize" that living things could have formed the odd organic ...

NASA's Mars Curiosity rover has been exploring a curious geological formation made up of ridges that look like spiderwebs ...

Gypsum is a soft, translucent sulfate mineral that allows just enough light to penetrate for photosynthetic organisms to ...

Aliens exist – they just haven't visited Earth, a NASA veteran has claimed. Dr Gentry Lee has worked at the US space agency ...

Astrobiologists say we could find evidence of microbial life within the next 10–20 years. What does that mean? Where are we ...

United States President Donald Trump says he’ll release government files relating to alien and extraterrestrial life.

Life on Earth may not have started here at all. A scientist says alien intervention is unlikely but still possible, reshaping ...

Turns out evidence of alien life might well have been discovered much closer to home.

But the real truth is that alien life on other planets could be even stranger than floating balloons or amorphous organisms ...