Jordan Flowers claims Russia and China may be reverse-engineering alien technology, raising national security concerns.

ROSWELL, N.M. — The world famous Roswell “incident” was no UFO but rather a Russian spacecraft with “grotesque, child-size aviators” developed in human experiments by Nazi doctor and war criminal ...

In 1988, the Soviet Union launched two of its most ambitious spacecraft ever built not toward Mars itself, but toward one of ...

For decades, humanity has searched the universe for signs of alien life — but some scientists warn that finding it may come ...

In fact, throughout history there have been numerous reports of supposed alien spacecraft sightings that have turned out to ...

A covert Chinese space plane has quietly released a new UFO-like object into orbit, according to US tracking data, fuelling ...

An eyewitness in England spots a group of strange sheep possibly being manipulated by extraterrestrial forces, in this clip ...

Take a drive to the CIA’s Area 51 – a route with more UFO sightings and unexplained mysteries than anywhere else on Earth ...

When the U.S. was born, humanity was still seven years away from balloon-borne flight. Where might we be another 250 years from now, should the nation be fortunate enough to survive that long?

ABC Radio Australia launches WhatsApp Channel pilot to connect with new Pacific audiences ...

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NASA works with scientists worldwide to advance our understanding of what hazards are in our solar system and how we can mitigate the risks.