From declassified footage to eyewitness testimonies, here are 10 must-watch UFO documentaries to prepare for Steven Spielberg ...

New three-part documentary series explores the truth behind the footage that captivated the globe in the 1990s ...

"Explore the cosmos from your couch with Netflix’s most captivating space documentaries. From historic space missions to mind-bending black holes, these films reveal the universe’s greatest mysteries ...

The truth is out there — and late President George H.W. Bush apparently knew it — telling a federal official that an alien made contact with humans at a secretive New Mexico air base in 1964, ...