An overview of the Chandra mission and goals, Chandra's namesake, top 10 facts.
Classroom activities, printable materials, interactive games & more.
Overview of X-ray Astronomy and X-ray sources: black holes to galaxy clusters.
All Chandra images released to the public listed by date & by category
Current Chandra press releases, status reports, interviews & biographies.
A collection of multimedia, illustrations & animations, a glossary, FAQ & more.
A collection of illustrations, animations and video.
Chandra discoveries in an audio/video format.
Chandra Zoom: Abell 521
Abell 521
A composite image of X-ray data from Chandra (colored blue) and radio emission from the Giant Meterwave Radio Telescope (orange) of Abell 521 is shown here. The elongated shape of the X-ray emission suggests that the cluster has undergone a violent collision with another group or cluster of galaxies. A variation of brightness between longer and shorter radio waves at the center of the cluster also supports the theory that a major collision has occurred in this cluster.
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