A devastating, nearly mile-wide "wedge tornado" has killed at least 26 people and battered Mississippi with golf ball-size hail and winds up to 200 mph.

STEVE was spotted across the U.S. and in parts of the U.K. after the most powerful solar storm to hit Earth for six years smashed into our planet.

And what can happen to your body if you stay awake way past your bedtime?

Can a person or object exposed to high radioactivity just take a shower with soap and water, or is more needed for decontamination?

Last year, scientists described a weird goblin shark in a scientific journal despite never setting eyes on it. Experts now question the review process that approved the study.

A pair of orcas off the coast of South Africa have been ripping open sharks and feasting on their livers for the last eight years. A great white shark that survived an attack by the serial killer brothers has now been identified through huge scars across its massive body.

An unnamed woman was bitten twice by a blue-ringed octopus, which contains one of the most dangerous neurotoxins on the planet, but she escaped relatively unharmed.

A new analysis of a mummified "mermaid" found in a Japanese temple has revealed exactly what it is made from, and it's not what scientists thought.

From programs to build supersonic flying saucers to atomic bombs, here are the most fascinating declassified military and CIA secrets.

In regressive evolution, organisms lose complex features and can appear to evolve "in reverse." But evolution doesn't retrace its steps, experts said.

The connections between different regions of the brain responsible for language processing depend on which language you grew up with.

Why we wear green and other holiday curiosities.

Grab a great student laptop for less at Amazon.