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

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

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 Pentagon UFO transcripts.

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

The tranche of never-before-seen documents released by the Pentagon on UFOs includes descriptions of reported sightings - by civilians on Earth and by astronauts on the Moon. The documents, spanning ...

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 ...

Dozens of photos were included as part of the release, such as photos shared by the FBI, Department of Defense, and NASA.

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

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