Newly declassified Pentagon UFO files have reignited debate over a possible alien presence on the Moon after a previously ...

The Donald Trump administration has released numerous files about reported UFO sightings as well as bizarre claims and ...

The best way to find alien technosignatures is to look for ones that have long survived their creators, according to a new ...

Our search for technosignatures—clear signs of advanced civilizations beyond Earth—takes many forms. Many are driven by the famous Drake equation, which attempts to estimate how many technological ...

Apollo astronauts described lights "sailing off into space" and skies like the "Fourth of July" in newly declassified Pentagon UFO transcripts.

Buzz Aldrin is quoted as having made three observations, one of which was of something with a "sizeable dimension." ...

The Pentagon has released hundreds of UFO-related files, including Apollo mission transcripts, military videos and eyewitness reports of unexplained aerial phenomena. While the disclosures have raised ...

Once small enough, these technograins might gain a trip out of its host solar system by a solar wind that overcomes the ...

Add Yahoo as a preferred source to see more of our stories on Google. Scientists have long believed Saturn’s moon Titan hid a massive underground ocean, but new research suggests something even ...

There are all sorts of things flying around the universe that we earthlings haven't yet figured out how to identify.

More than 300 pages of intelligence reports from the National Security Agency have shed new light on UFO sightings.