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: Black Holes
What if we, and everything that we have seen are inside of a very
massive black hole and outside of it is a very unknown universe?
We do not have direct information
about what exists inside a black hole, but an expanding, sparsely
populated, but clumpy Universe wouldn't be the first guess of
astronomers. A black hole is an object containing so much mass concentrated
in a relatively small space that light cannot escape. What would stop light
escaping from our known Universe?
