Simulations of highly magnetized stars that explode and collapse into black holes show that they transfer their magnetic fields to the disk of swirling matter that forms around the new black hole.

"In principle, extraction is possible, and it could be a clean and efficient solution to the complex energy problems we will ...

Every galaxy is thought to form at the center of a dark matter halo—a region of gravitationally bound matter that extends far ...

In the early universe, primordial black holes could acquire a "dark charge," giving them an unnaturally long lifetime, new ...