From the Greys to the Nordics, these aliens appear frequently across abduction stories and science fiction tales.

A siphonophore—a colonial marine invertebrate related to the venomous stinging Portuguese Man-o-war—is scanned using Deep ...

Scientists suggest that advanced aliens might not have physical bodies, challenging traditional views of extraterrestrial ...

Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.

That sharp, briny smell is not the salt, it is a gas made by life, breathed out by tiny ocean creatures too small to see. For ...

This new group, which is led by Harvard professor Avi Loeb, aims to advise the Trump administration and the U.S. intelligence ...

While they may look like something from a science-fiction film, the clouds are actually a rare natural phenomenon known as ...

Galo Suárez, 25, was in a car near the El Rey Food Market on 13th St. in Milwaukee with his fiance Reyna Elizabeth Garcia and her brother Teodoro last weekend, ...

Some of these approaches may show promise, but new research indicates much of today’s AI is even more easily duped by false ...

From space to healthcare and artificial intelligence, what could the next 250 years of the United States look like?

Having considered more than 1,000 cases, this analyst of unidentified anomalous phenomena has honed a rational process for ...