In the spring of 1967, a series of unusual sightings began to grip the Soviet Union. From the rural landscapes of Ukraine to the robust Caucasus Mountains, thousands of citizens reported seeing ...

Pentagon UFO files reveal federal agents' accounts of mysterious orbs as Trump's scientific advisers debate alien theories ...

Add Yahoo as a preferred source to see more of our stories on Google. A remote-controlled drone over an ocean shoreline. - Credit: Getty Images For the past month, residents of the northeast and ...

Finding evidence of alien life would be “the biggest discovery ever made by humanity,” one expert said. But so far, there’s a ...

There’s more than one type of skyscraper above Manhattan. The mysterious orb caught on video zooming over the Hudson River is just the latest “UFO” incident in the Big Apple, even though the densely ...

For the past month, residents of the northeast and mid-Atlantic U.S. have made thousands of reports and social media posts about supposed sightings of suspicious drones and unidentified aerial objects ...