Aristotle believed the planets revolved around Earth and God could not have created other worlds. Today, scientists scour the ...

From fish and turtles, to hippos and crocodiles, about 43% of all known large freshwater animal species have been ...

In Beacon Valley, one of the most Mars-like regions on Earth, Ariel Waldman reveals hidden ecosystems that persist despite ...

Nanotyrannus, once dismissed as just a teenage T. rex, appears to have been its own distinct species after all. Scientists ...

Donald Trump announced his administration would begin identifying and releasing UFO-related information earlier this year.

A new study proposes detecting life in space by spotting patterns across many planets instead of focusing on one at a time.

Over four decades, the Alien franchise has brought many different versions of the xenomorph creature to theaters.

If you trace the animal family tree back through the fossil record, the trail usually goes cold about 539 million years ago. Before this boundary—the start of the famous Cambrian explosion—multicelled ...

An interactive exhibit in a Crossroads art gallery aims to astonish earthly and extraterrestrial visitors alike. Wichita, Kansas, artists and spouses Mike Miller and Meghan Miller have created ...

His job was to uncover secrets from the unknown. But his curiosity opened doors that the government preferred to keep closed.

In these science fiction books, extraterrestrial beings are sympathetic, horrifying and everything in between.

SKAGIT COUNTY, Wash. — Officials found eight more "canine" carcasses on Skagit County beaches Thursday, bringing the total to 21, after over a dozen carcasses washed ashore in the past week. Guemes ...