Over 2 decades of Chandra X-ray Observatory views of the Crab Nebula and Cassiopeia A have been time-lapsed. The Chandra team explains here. Credit: NASA/CXC/A. Hobart In Montana, a new map ...

The new composite image of the Crab Nebula comprises X rays from Chandra, optical data from Hubble (purple), and infrared data from Spitzer (pink). Crab Nebula has been constantly observed by ...