More than 170 accounts and videos reveal never-before-known UFO sightings.

Astrophysicist and science communicator Neil deGrasse Tyson spills on his obsession with aliens and the best and worst ...

America’s favorite astrophysicist has turned that lifelong fascination into a book, “Take Me to Your Leader: Perspectives on ...

Donald Trump’s latest UFO file release blew up among conspiracy theorists and longtime believers at first, but not everyone ...

Files released include images from U.S. military reports on UAPs and archival imagery from NASA’s Apollo missions.

The trick isn't to just search for biosignatures, but rather to look at how they are organized — and the Europa Clipper has ...

Members of the public say they believe in extraterrestrial life after the Pentagon released its first set of declassified UAP ...

In 1950, Nick Mariana, manager of the Great Falls Electrics baseball team, captured video of two unexplained objects moving ...

The Trump administration's Department of Defense released its first batch of files regarding "unidentified anomalous ...

The site contains newly declassified documents related to Unidentified Anomalous Phenomena (UAP) ...