The disc of plasma surrounding the black hole at the heart of the Milky Way is constantly emitting flares both large and small.

W. M. Keck Observatory’s laser guide star adaptive optics (LGS AO) system uses a laser to create an artificial star to measure for atmospheric distortions. This results in sharp, high-resolution ...

It's a new type of three-body problem for astronomers, who used the Hubble Space Telescope to determine that twin asteroids ...

Selection Sunday on March 16 is less than two weeks away, and the Bubble Watch picture for the 2025 men's NCAA tournament continues to sharpen. According to ESPN Analytics' tourney forecast model ...

Due to the uncertainty in the future movement, the indicated winds will almost certainly extend to regions outside the rings on this map. The extent of the warning and watch zones reflects this.