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
How old is the moon?
The moon may be 4.5
billion years old, formed by a collision between the Earth and a very
large object. For a nice explanation of this, please see this NASA
website:
http://lunar.arc.nasa.gov/history/lhistory.htm
However, it's important to note that we actually do not know how and
when the moon formed! It is one of the mysteries of the Universe we
hope to figure out in the future.
