"Maybe the best hypothesis is that aliens beamed him up to the mothership," said the wife of Major General William Neil McCasland.

New SETI research suggests space weather like solar winds could be interfering with alien radio signals, making them harder ...

Add Yahoo as a preferred source to see more of our stories on Google. For decades, humanity has scoured the cosmos for any signs that we aren't alone in the universe. But now, researchers at the SETI ...

A viral podcast moment last month reignited speculation about extraterrestrials and prompted President Donald Trump’s commitment to kickstarting the release of government files on flying saucers. But ...

Retired Air Force Maj. Gen. William Neil McCasland, who once commanded a base long associated with UFO lore, has been missing for nearly two weeks.