WASHINGTON — Mysterious black triangle objects speeding up to 1,800 miles per hour without vapor trails were spotted over secret US military bases on at least three separate occasions over the past ...

Donald Trump said pilots told him a round UFO passed an F-22 jet at three times its speed, pledging to investigate secret ...

The new files include witness statements and drawings after alleged Skinwalker sightings on a ranch in Utah.

A prolific UFO researcher claims he spotted an object flying close to the International Space Station in a recent NASA ...

Trump said he’s not a big believer in UFOs, but that the topic is one of the questions he is asked about most often in ...

The seventh tranche of documents include investigative reports into three sightings of black, triangular objects that were ...

The reports include “flying saucers” and a “purplish-white” object hovering in the sky over Catalina Island ...

A new batch of files from the Pentagon detailed apparent UFO sightings over Catalina Island in the 1940s and 1950s.

A new study showed Arizona having one of the highest amounts of UFO sightings per capita. Here are some of the states most mysterious stories.

Unidentified flying objects (UFOs) have long captivated Americans — a majority of whom, recent polling suggests, believe the government is hiding information about the phenomena. And the debate has ...