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.
Q&A: Cosmology
I need to find out what objects are in space further than
131,700,000,000 light years.
There are undoubtedly many objects at a distance greater than
131 billion light years, but we can't know about them, if the
Big Bang theory is correct and the observable universe
originated only about 13 billion years ago. Light has not had
enough time to reach us from such distant objects
