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.
Podcasts: Groups & Clusters of Galaxies

Recent discoveries and updates of the Chandra mission in video and audio formats.

JKCS041 in 60 Seconds
JKCS041 in 60 Seconds (10-26-2009)
The most distant galaxy cluster yet has been found some 10.2 billion light-years from Earth.

Hydra A in 60 Seconds
Hydra A in 60 Seconds (09-14-2009)
This composite image of the Hydra A galaxy cluster shows 10-million-degree gas observed by Chandra and jets of radio emission observed by the Very Large Array.

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Stephan's Quintet in 60 Seconds
Stephan's Quintet in 60 Seconds (07-10-2009)
This beautiful image gives a new look at Stephan's Quintet, a compact group of galaxies discovered about 130 years ago and located about 280 million light years from Earth.

MacsJ0717 in 60 Seconds
MacsJ0717 in 60 Seconds (05-15-2009)
This image contains one of the most complex galaxy clusters known, which is located about 5.4 billion light years from Earth.

Medusa in 60 Seconds
Medusa in 60 Seconds (05-01-2009)
NGC 4194 is a galaxy that is found about 110 million light years from Earth.

Abell 85 in 60 Seconds
Abell 85 in 60 Seconds (01-23-2009)
The composite image shows the galaxy cluster known as Abell 85, which is located about 740 million light years from Earth.

Abell 1689 in 60 Seconds
Abell 1689 in 60 Seconds (11-14-2008)
Abell 1689 is a massive cluster of galaxies located about 2.3 billion light-years away.

Perseus A in 60 Seconds
Perseus A in 60 Seconds (10-02-2008)
The giant galaxy, Perseus A, which is also known as NGC 1275, is a well-known source of strong radio radiation.

Macs J0025.4-1222 in 60 Seconds Plus
Macs J0025.4-1222 in 60 Seconds Plus (09-04-2008)
Two galaxy clusters, each a quadrillion times the mass of the Sun, collided to form the system formally known as Macs J0025.4-1222.

Giants of the Universe Probe Cosmic Questions
Giants of the Universe Probe Cosmic Questions (11-30-2006)
Clusters of galaxies are the largest structures in the Universe that are held together by gravity. Because of their immense size and mass, galaxy clusters are extremely useful as tools to probe a variety of questions about the Universe as a whole as well as properties of the clusters themselves.

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