A burst of X-rays from 8 billion years ago may be the first clear evidence of a white dwarf torn apart by a black hole.

Intense radiation emitted by active supermassive black holes—thought to reside at the center of most, if not all, galaxies—can slow star growth not just in their host galaxy, but also in galaxies ...

Many of us remember all too well our childhood bout of chickenpox: those itchy, scabby, red spots that appeared all over our ...

A brilliant star in our nearest galactic neighbor didn’t go out with a bang, it simply faded from sight, leaving scientists to piece together what could make something so massive vanish so quietly.

All the “normal” matter, like the stars, gas, dust, and people, is called baryonic matter, and it’s basically the tiny visible fraction of a universe that’s mostly invisible and still not fully ...

It took the artist half a century of toil in the most remote parts of Nevada to build what may be the most extreme ...