Avi Loeb is leading a new Science Advisory Council tasked with finding the origin of unidentified objects spotted by military pilots and others. It's part of a broader White House effort studying ...

The Harvard astrophysicist has devoted years—and thousands of interviews—to the idea that mysterious objects streaking ...

As much as Steven Spielberg likes aliens, he seems to prefer holding them at arm’s length. The creatures in Close Encounters ...

New evidence tied to the missing Air Force general in New Mexico suggests the veteran officer was attempting to cut his ties ...