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.
More Images of MACS J0025.4-1222
1
Click for large jpg X-ray
Jpeg, Tif, PS
Click for large jpg X-ray Lensing
Jpeg, Tif, PS
Click for large jpg X-ray Optical
Jpeg, Tif, PS
Chandra X-ray Image of MACS J0025.4-1222
This image shows a system where two massive galaxy clusters have collided and in doing so have forced the separation between dark and "normal" matter. X-rays from Chandra (pink) show where most of the normal, or baryonic, matter in the cluster resides.
(Credit: X-ray(NASA/CXC/Stanford/S.Allen); Optical/Lensing(NASA/STScI/UC Santa Barbara/M.Bradac))
2
Click for large jpg Optical
Jpeg, Tif, PS
Click for large jpg Lensing
Jpeg, Tif, PS
Hubble Optical and Lensing Images of MACS J0025.4-1222
Optical data from Hubble is used to trace the mass. This result helps answer a crucial question about whether dark matter interacts with itself in ways other than via gravitational forces. It also shows that the Bullet Cluster, a similar system, was not an exception and that the earlier results were not the product of some unknown error.
(Credit: NASA/STScI/UC Santa Barbara/M.Bradac)
3
Scale Bar Image
Jpeg, Tif, PS
MACS J0025.4-1222 with Scale Bar


Return to MACS J0025.4-1222 (Aug 27, 2008)