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.
Black Holes

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Stellar -Black holes with a mass of about 5 - 100 Suns formed at the end of very massive star's evolutionary cycle.
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Mid-mass -A newly discovered type of black hole that has a mass of 500 - 1,000's of Suns.
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Supermassive -Black holes with a mass of a million or more Suns located in the centers of galaxies.