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.

Miscellaneous

This section is devoted to cosmic X-ray sources or topics that do not fit in any of the other categories in "X-Ray Sources".

Brown Dwarfs - Clouds of collapsing gas and dust that did not contain enough mass to initiate core nuclear fusion. Such objects are then frozen somewhere along their pre- main sequence contraction phase, continuously cooling into compact dark objects. Because of their small size and low temperature, they are extremely difficult to detect observationally.

Gamma Ray Bursts - An outburst that radiates tremendous amounts of energy in a few minutes equal to or greater than a supernova, in the form of gamma rays. Such objects were discovered by accident in the late 1960's by satellites designed to detect gamma rays produced by atomic bomb tests on Earth.