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Thousands of people have reported UFOs or alien encounters in Northern California. That number could soon go up.

A planet with one side permanently roasting and the other frozen in endless darkness might still have a chance of supporting life. Researchers found that heat inside a tidally locked exoplanet could ...

SETI scientists searched the interstellar object 3I/ATLAS for radio signals that could indicate extraterrestrial technology but found nothing beyond human-made interference. Even so, the ...

"Eventually, our own Voyager spacecraft will be extraterrestrial artifacts in other stellar systems." ...

A polarizing Harvard University astronomer known for splashy theories about alien visits has been tapped by the White House to lead a team of outside scientists to study the national security risks ...

The pilots dubbed the fireballs “foo fighters” but had no idea what they were. Plasma? Enemy tech? Aliens? We still haven’t ...

New UFO files have been released by the Trump administration that include several vivid descriptions of mysterious sightings ...

Just months after 9/11, strange messages started appearing across U.S. military computers: “Your security system is crap.” ...

A set of protocols telling scientists what to do – and what not to do – if they ever detect evidence of intelligent life ...

A polarizing Harvard astronomer known for splashy theories about alien visits has been tapped by the White House to lead a team of outside scientists to study the national security risks posed by UFOs ...