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.
Zoom into W28

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W28
This composite shows a classic example of a mixed-morphology supernova remnant known as W28. The background stars and fine structure are seen in optical light (grey and white) by CTIO. The radio (orange) data are from the VLA, while the wide-field X-rays (blue) come from the ROSAT satellite. The close-up view of the center from Chandra (low-energy X-rays are red, the medium are green, and the high range is blue) shows the shape and extent of the high-energy emission in that region. By studying W28 and others like it, astronomers hope to better understand the complexities involved when a star explodes in a crowded neighborhood.

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