This bright green sea creature contains a toxic pigment that protects it from predators, kills bacteria and determines the ...

Discover why the best aurora displays occur after solar maximum, and why 2026-2027 could be the year of the northern lights.

Generative AI could saddle the planet with heaps more hazardous waste than ever before.

On Earth, the magnetic field of our planet points a compass north, but in space, things are a bit more complicated.

Black holes have captivated scientists for more than a century. How well do you know these supermassive wonders of the universe?

Brain scans of modern listeners suggest that Aztec whistles sound like human screams, which may have prepared sacrifice ...

Octopus filmed firing stones from her siphon from inside a clam shell like a sniper in never-before-seen behavior captured ...

The Indian Ocean "gravity hole" is a region where Earth's mass is reduced, leading to weak gravitational pull, ...

For the first time ever, marine biologists have measured how much energy octopuses really need to change color — and it's a ...

How many of the 160 named volcanoes in the U.S. and territories do you know? If you live in Alaska you have a big advantage.

Wolves in Ethiopia that lick the flowers of the "red hot poker" flowers are the first known large carnivores to eat nectar.

At least 15 people have fallen sick as a result of eating contaminated ground beef, and health officials warn that the ...