The Hubble Space Telescope captured an image of NGC 4694, a galaxy that possesses unusual properties that complicate its ...

Chinese scientists claim they have made a converging energy beam weapon — but did they really, or have they been watching too much Star Wars?

Miles of air cover Earth. The boundary between Earth's atmosphere and outer space, the Kármán line, is about 62 miles (100 kilometers) above the planet's surface. However, about 99.9% of the mass of ...

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

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.

A new study reveals that the asteroid 2024 PT5, which has been orbiting Earth for 2 months, may have a "lunar origin." ...

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