The Andromeda galaxy (M31) has been captured by the Chandra X-ray Telescope. See the imagery and hear a sonification of it.

November’s night skies are grand, festive and bright in many places, quiet and contemplative in others. Both tempers are ...

The galaxy, also known as M31, can be seen with the naked eye but appears more spectacular from areas with minimal light ...

Nov. 6: The full beaver supermoon is at 11:47 p.m. Eastern Time and rises at sunset in the East. This is the first full supermoon of 2025 and the largest and brightest full moon of 2025. Should be a ...

The typical blue spiral galaxy (top) continues to form stars actively until it collides with another galaxy. At that point, an active galactic nucleus (AGN) is formed that depletes the galaxy of dust, ...