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?

A shockwave caused by the galaxy NGC 7318b slamming into four other galaxies is akin to a "sonic boom from a jet fighter." ...

A five-year leak on a Russian module of the International Space Station has gotten worse over time. Now, NASA and Russia's ...

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

Peculiar James Webb Space Telescope observations seem to show gargantuan black holes in the earliest moments of the universe.

Neanderthals tended to bury their dead in caves, while early modern humans buried their dead in the fetal position, new ...

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.

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