Galactic Center: A 400 by 900 light-year mosaic of images located about 26,000 light years from Earth in the constellation Sagittarius.

This Chandra image exposes a wealth of exotic objects and high-energy features at the center of our galaxy, the Milky Way. In this new and deep image from Chandra, red represents lower-energy X-rays, green shows the medium range, and blue indicates the higher-energy X-rays. Hundreds of small dots show emission from material around black holes, neutron stars and white dwarfs. A supermassive black hole—some four million times more massive the Sun—;resides within the bright, blue-white region on the right. The diffuse X-ray light comes from gas heated to millions of degrees by outflows from the supermassive black hole, winds from giant stars, and stellar explosions.

(Credits: NASA/CXC/UMass/D. Wang et al.)