A declassified CIA document has resurfaced which suggests the US was preparing for the possibility of an alien invasion after ...

Resurfaced CIA documents reveal the US was preparing a response should aliens have made contact amid a spike in UFO sightings ...

For over three decades, the photographs and the story behind them remained confined to the piles of classified documents and ...

Senator Chuck Schumer asked Trump to declassify UFO files after he said he would declassify files on high-profile assassinations.

A physicist labors to build a DIY nuclear weapon in a cartoon from a newly declassified ... documents said. The conclusion, then, was that a dedicated group of scientists working for a foreign ...

The papers includes papers of Henry Kissinger, who served as secretary of state under presidents Richard Nixon and Gerald Ford About 13 million pages of declassified documents from the US Central ...