Alarmed defense experts believe these UFOs may be highly advanced, next-generation spy drones, raising concerns about ...

UFOs, or the notion of them, have been around a long time. Here’s a look at how the various iterations of the subject — from government investigations to sightings to movies and TV — have unfolded ...

Reverse engineering alien spacecraft: A French 'flying saucer' aircraft, the Couzinet Aerodyne, is modeled after the suspected UFOs spotted in the 1950s. (Photo by Keystone/Hulton Archive/Getty Images ...