An underwater observatory recently detected a startlingly energetic cosmic neutrino. One possible cause involves a phenomenon ...

In early 2023, a neutrino detector buried in the Mediterranean Sea recorded something extraordinary: a single particle carrying more energy than anything ever detected from space. Now, physicists at ...

Explore black hole discovery in astrophysics, from hidden stellar remnants to supermassive giants, and learn how scientists detect these invisible cosmic objects using light and gravitational waves.

A tiny, dense stellar corpse in a nearby galaxy is pumping out so much energy that, on paper, it should have blown itself apart long ago. The object, cataloged as M82 X-2, blazes in X-rays up to ...