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 ...

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

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