A polarizing Harvard astronomer known for splashy theories about alien visits has been tapped by the Trump administration to ...

New UFO files have been released by the Trump administration that include several vivid descriptions of mysterious sightings in the sky.

Take a drive to the CIA’s Area 51 – a route with more UFO sightings and unexplained mysteries than anywhere else on Earth ...

Harvard astrophysicist Avi Loeb argues 3I/ATLAS and other interstellar objects may hint at alien technology, drawing fame, ...

An audio tape reportedly exists of a UFO briefing between Air Force officials and scientists in 1952.

Astronomers studying the interstellar comet 3I/ATLAS say it could be a 12‑billion‑year‑old relic formed in near‑absolute‑zero ...

Harvard astrophysicist Avi Loeb argues 3I/ATLAS and other interstellar objects may hint at alien technology, drawing fame, funding, and fierce criticism.

PARIS, France — An interstellar comet that blazed past the Sun last year could be nearly three times older than our Solar System and is unlike anything ever before seen in our cosmic backyard, ...

New evidence tied to the missing Air Force general in New Mexico suggests the veteran officer was attempting to cut his ties ...

Exactly where the comet 3I/ATLAS came from within the Milky Way remains a mystery.

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? It was a temperate summer evening on September 19, 1961, when husband-and-wife duo ...

Astronomers studying the intriguing comet 3I/ATLAS on Monday said that this visitor is incredibly ancient, potentially nearly ...