The research is mounting up that we might not be alone in this big wide world. So what's the likelihood that aliens are out ...

For more than a century, popular culture has trained us to picture extraterrestrials as bug-eyed, bipedal “little green men” ...

A casual viewer might assume that if you've seen one alien movie, you've seen them all. But that couldn't be further from the truth, as filmmakers throughout cinematic history have used these ...

From mudstones on Mars to strange gases in exoplanet atmospheres, tentative evidence for extraterrestrial life is starting to ...