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

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

Scientists propose building a lab on the moon to screen Mars and other space samples for alien microbes before they ever ...

Researchers say a biocontainment facility on the Moon could be humanity's last line of defense against potential future alien ...

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

A provocative study suggests that Jupiter’s frozen moon Europa may not only be hospitable, but that life from Earth could be ...

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

Moon dust may be hiding signs of pulverised alien technology, scientist says - Grain-sized remnants of alien technology may ...

Researchers propose turning a future NASA moon base into a quarantine station that would screen space samples before they ever reach Earth.

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 ...

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