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

One of Britain’s most prominent space scientists believes humanity may finally get an answer to one of its oldest questions ...

A mysterious metal shard, once thought to be a piece of a UFO that crashed in 1947, has sparked years of wild speculation.

Will we discover alien life by 2075? A top scientist predicts we will. Learn about the search for life beyond Earth, from ...

In the many decades of NASA exploration, there has only been one detection that got on that scale. It was collected by the ...

Scientists searched 27 exoplanets for alien technology using planetary eclipses, revealing a new way SETI hunts signals ...

Polling shows that nearly half of Americans now believe aliens have visited this planet—and that the number who aren't sure ...

Aliens might be transmitting communications signals to each other across exoplanets, some astronomers think. Since these signals are likely sent as narrowband radio waves, we may now have a way to ...