Documents might help scientists shed light on unexplained phenomena and government secrets, experts said.

Donald Trump’s pledge to release official files relating to UFOs has intrigued conspiracy theorists who suspect the US government has hidden evidence of alien activity on Earth.

When a mysterious crescent appeared over Moscow in 1967, alien enthusiasts were unaware they were actually tracking a 3-megaton weapon designed to bypass American radar.

Related: 18 Of The "Biggest Historical Lies" People Somehow Still Believe Despite Evidence To The Contrary ...

The president’s announcement came after he rebuked his predecessor Barack Obama for saying that aliens were “real.” Obama ...

President Trump had lashed out at former President Barack Obama earlier Thursday for telling a podcaster that aliens were ...

President Donald Trump said that he's directing the Pentagon and other government agencies to identify and release files related to extraterrestrials and UFOs because of “tremendous interest.” ...

President Trump directed his administration to release files on UFOs and any "alien and extraterrestrial life," an issue that has drawn decades of fascination — and spawned more than a few wild ...