Astronomers thought they had seen the "first hints of life on an alien world" this year, but they disappeared under closer ...

Scientists suggest the first alien signal we detect could be a desperate cry for help from a fading civilization.

David Bowie as Thomas Jerome Newton in 'The Man Who Fell to Earth'; a Xenomorph in 'Aliens'; Scarlett Johansson as the Female in 'Under the Skin' A casual viewer might assume that if you've seen one ...

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

For the first time, scientists have directly detected molecules in a Frisbee of gas and dust swirling around an alien gas-giant planet. “I didn’t think this was possible,” says astronomer Sierra Grant ...

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 ...