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: General Astronomy and Space Science
When will the Local Group of Galaxies fall into and join
the Virgo cluster?
The Local Group and the Virgo cluster won't collide for a very long time,
even by astronomical standards. Based on the relative velocity between
these objects and their separation, a merger shouldn't happen for about 50
billion years, or much older than the age of the Universe. By that time,
the Milky Way and M31 should have merged.
