A mysterious object from another star system is racing through our Solar System, and every major space telescope is watching.

The world is getting stranger by the week. Newly released Pentagon files are now exposing decades of unexplained aerial ...

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?

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

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