(Reuters) -U.S. intelligence officials found no evidence that unidentified aerial phenomena observed by Navy aviators in recent years were alien spacecraft, but the sightings remain unexplained in a ...

A triangular UFO captured on infrared over Area 51 has gone viral, starting alien theories and questions about secret military tech.

The third known visitor from another star system, Comet 3I/ATLAS, has been racing through the Solar System with just enough weirdness to ignite a familiar debate: is it natural or could it be ...

Space fans hoping that the intruder from beyond the solar system known as Comet 3I/ATLAS is actually an alien spacecraft may be disappointed by new research that could close the book on this ...