Undersea detectors anchored deep in the Mediterranean Sea found an ultra-high-energy neutrino, a particle that opens a new window onto the cosmos.

The cosmic superstructure Quipu is more than 13,000 times the length of the Milky Way, and its mass is 200 quadrillion times ...

If you have kids in school, or even if you don’t, you’ve probably realized that there’s a lot about the day-to-day of school ...

Hubble’s high-resolution imagery allowed researchers to hone in on more of the Bullseye galaxy’s rings — and helped confirm ...