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 ...

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Aside from what happens after we die, there is no greater mystery than the question of whether humans are alone in the universe. Steven Spielberg tackles the cosmic enigma head-on with his new sci-fi ...

Apollo astronauts described lights "sailing off into space" and skies like the "Fourth of July" in newly declassified ...