If life exists elsewhere in the universe, researchers at the University of Washington are finding the clues on Earth to help ...

In the spring of 1967, a series of unusual sightings began to grip the ...

When a mysterious crescent appeared over Moscow in 1967, alien enthusiasts were unaware they were actually tracking a ...

If you've been following exoplanet research over the last couple of years, you've definitely heard of K2-18b. Located 124 ...

On Thursday the U.S. president ordered the release of federal files related to UFOs and aliens, although no evidence of extraterrestrials visiting Earth is known to exist ...

Documents might help scientists shed light on unexplained phenomena and government secrets, experts said.

These Arizona day trips are simple to pull off this year, packed with jaw-dropping views, fun detours, and just enough ...

There’s a thin layer of human-made stuff enrobing the planet. A data dive into the anthroposphere. Earth’s a medium-size rock ...

A viral Obama podcast answer about aliens prompted Trump to accuse him of revealing secrets and promise to release UFO files ...

How big would a telescope need to be to see Earth’s dinosaurs from 66 million light-years away? Think big—and then think ...

Past classified reviews looking for alien life have found stranger things about life in Washington.

Bring up aliens and a lot of people will scoff. But not everyone is laughing. Around the turn of the century, 3.8 million people banded together in a real-time search for aliens -- with screensavers.