Beneath the New Mexico desert, whistleblowers claim a secret base houses alien experiments and a hidden war. Dulce remains one of the most mysterious and controversial sites in UFO ...

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

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 ...

More than 2,500 alien plant species could find suitable conditions in the Arctic, especially in northern Norway and Svalbard.

Human intelligence wasn’t a cosmic evolutionary fluke, some scientists say. The case against cosmic loneliness is growing.