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Chandra Quest
Cassiopeia A
Cassiopeia A

Fifth Anniversary Index

Main Chandra Site

Chandra Images from 1999-2004

About Chandra

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With its spectacular mirrors and instrumentation, Chandra allows astronomers to observe X-rays from the universe as they never have before. Here we present some interactive pieces to see for yourself how Chandra has been revealing the X-ray Universe.
Vote for Your Favorite Chandra Image
Do you have a favorite Chandra Image? Vote and see which image is the most popular.

Chandra's X-ray Eyes
Witness the Universe through the "X-ray eyes" of NASA's Chandra X-ray Observatory. Scroll through 20 of Chandra's most spectacular images in this flash piece.

Behind the X-rays
An interactive exploration of how Chandra works, including a look at the telescope system, science instruments and spacecraft system.

Major Milestones in X-ray Astronomy
Chandra is part of a long history of X-ray astronomy, stretching back to the late 1940s.

Additional Interactives