For the first time, scientists have the calculations and simulations to explain mysterious flashes from the galaxy OJ 287.

The colossal black hole lurking at the center of the Milky Way galaxy is spinning almost as fast as its maximum rotation rate. That's just one thing astrophysicists have discovered after developing ...

The cutting-edge observatory is charged with seeing some of the earliest visible light, and the recent image achieves a new milestone in stellar astronomy. Reading time: Reading time 2 minutes The ...

Galaxies are not islands in the cosmos. While globally the universe expands—driven by the mysterious "dark energy"—locally, galaxies cluster through gravitational interactions, forming the cosmic web ...