In 1989, Bob Lazar made extraordinary claims that he had worked at a secret U.S. facility studying recovered alien spacecraft ...

Sagan's team created the greatest puzzle of all time, which you can only solve if your species understands the basic nature ...

Even at this early stage in our spacefaring age, humanity has already begun sending probes that will eventually reach other solar systems, even if that was not their original intention. Five robotic ...

Add Yahoo as a preferred source to see more of our stories on Google. Former Area 51 employee Bob Lazar. Courtesy of Luigi Vendittelli Bob Lazar is a self-proclaimed physicist whose claims to inside ...

A mysterious cigar-shaped object spotted tumbling through our solar system last year may have been an alien spacecraft sent to investigate Earth, astronomers from Harvard University have suggested.

Strange interstellar comet speculated to be alien spacecraft is older than Solar System - Scientists say comet represents preserved fragment of ancient planetary system ...

Even at this early stage in our space faring age, humanity has already begun sending probes that will eventually reach other solar systems, even if that was not their original intention. Five robotic ...

Harvard astrophysicist Avi Loeb has floated the provocative idea that humans might themselves be alien‑made 'autonomous probes,' built through advanced synthetic biology rather than evolving entirely ...

The latest tranche of declassified “UAP” files don't reveal much.

Last summer, a NASA-funded asteroid impact warning system detected a mysterious object speeding through the solar system. Scientists determined the object had entered the solar system from deep space, ...