It's the last clearly observed supernova in the Milky Way, Gassel said.

A new video shows the evolution of Kepler's Supernova Remnant using data from NASA's Chandra X-ray Observatory captured over ...

Celebrate the New Year with the "Champagne Cluster," a galaxy cluster seen in this new image from NASA's Chandra X-ray Observatory and optical telescopes.

NASA’s flagship X-ray observatory is starting the calendar with a flourish, unveiling a richly detailed view of a distant ...

The Champagne Cluster is a rare and beautiful example of two galaxy clusters smashing together. Its festive name comes from ...

Chandra, the world’s most powerful X-ray telescope, has been peering at black holes, stellar explosions and dark energy for a quarter-century Carlyn Kranking - Associate Web Editor, Science ...

Chandra Levy arrived in Washington, D.C. as an enthusiastic intern excited to be working at the Bureau of Prisons. She had hopes to one day land a job at the FBI. But before Chandra could make her ...