Given the size and age of the universe, it should be full of species with technology far more advanced than our own. But so far there is no trace ...

A former intelligence official alleges knowledge of bipedal beings, sentient plasmoids and foreign UFO retrievals as the U.S.

Add Yahoo as a preferred source to see more of our stories on Google. HBO Max "The Big Bang Theory" continues to grow its sitcom franchise, with the show's third spin-off "Stuart Fails to Save the ...

New Study Suggests Possible Extraterrestrial Messages May Have Been Overlooked ...

After decades of secrecy, stigma, and sometimes silliness—like the conspiratorial tales about recovered spacecraft and alien ...

A NASA rover image of a rock formation on Mars resembling a doorway has sparked speculation about alien life, though experts ...

A former Pentagon employee and his wife saw a strange, triangle-shaped aircraft fly over their Colorado home late one night ...

The '80s was a decade that produced some of television history's most memorable sitcoms, but not all of these series were fan ...

A spectacular photograph of a saucer-shaped cloud over Canmore, Alberta, has sparked a wild online debate, with one ...

For years, whistleblowers have publicly alleged that the United States government is withholding what it knows about UFOs ...

Raghav and I complement each other. He talks to me a lot about form and how he approaches his characters. Our paths are different, but we both are very much aligned emotionally.' ...

China is pressing ahead with its Mars sample-return mission, for which a planetary protection laboratory is to be built in the first phase of Hefei's Deep-Space Science City in East China's Anhui ...