The Air Force test facility at Groom Lake, Nevada—better known as Area 51—has harbored a wide variety of experimental aircraft the Pentagon would rather keep away from the prying eyes ...

The discovery of apparently classified records can set off alarm bells. But often, the federal government rules that the ...

A US Air Force veteran claims he witnessed an alien and “nonhuman” egg-shaped aircraft while working for a secret government UFO retrieval program — a jaw-dropping claim that’s reportedly ...

The X-44 MANTA was a top-secret late 1990s experimental aircraft design, considered at a time when America had the latitude and the capacity to experiment widely. A Different Time In the late ...

Come early next year American space agency NASA will fly, for the first time, an experimental aircraft that could one day bring back civilian supersonic aircraft, and might even allow them to fly ...