A dip in Earth's gravity field beneath Antarctica is helping scientists track deep-Earth changes over tens of millions of years.

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

When a mysterious crescent appeared over Moscow in 1967, alien enthusiasts were unaware they were actually tracking a 3-megaton weapon designed to bypass American radar.

Donald Trump’s pledge to release official files relating to UFOs has intrigued conspiracy theorists who suspect the US government has hidden evidence of alien activity on Earth.

Questions about what the federal government may know about extraterrestrial life in the cosmos — or possibly even here on ...

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

There are things the NASA chief has "come across in the job that he can’t explain," but aliens are not among them.

Disclosing government documents about UFOs won't mean much without hard physical evidence for alien spaceships or alien ...

Crystal Grottoes holds the distinction of being Maryland’s only commercially operated show cave, which is a fancy way of saying it’s the only cave in the state where you can safely explore without ...

Trump, 79, announced he will assign Secretary of Defense Pete Hegseth to identify and release files “related to alien and ...

The Agency gets hands-on with an alien autopsy in Absolute Martian Manhunter #9, peeling back layers of mystery and fascia this Wednesday.