Though this hunt came up empty, the fact that 3I/ATLAS is only the third known object found in the solar system after ...

WASHINGTON — The U.S. is concealing a longstanding program that retrieves and reverse engineers unidentified flying objects, a former Air Force intelligence officer testified Wednesday to Congress.

For the better part of a decade, space enthusiasts have scanned the horizon for the next 'interstellar interloper'—a ...