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 ...

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 ...

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 ...

Scientists propose that a moon base could act as an isolated first line of biological defense against extraterrestrial ...

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 ...

Video claims to prove that there are ‘mobile alien bases’ on surface of the Moon Video claims to prove that there are ‘mobile alien bases’ on surface of the Moon Share on X (Opens in new window) X ...

A NASA‑linked study argues that alien probes could already be in our Solar System, but our surveys are still too crude to ...

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