jeudi 10 mars 2016

Frontier Fields Galaxy Cluster MACS J0717

NASA - Chandra X-ray Observatory patch.

March 10, 2016

Galaxy cluster MACS J0717, one of the most complex and distorted galaxy clusters known, is the site of a collision between four clusters. It is located about 5.4 billion light years away from Earth.

Astronomers are studying a half dozen galaxy clusters, including MACS J0717, through the "Frontier Fields" project. To learn more about clusters, including how they grow via collisions, astronomers have used some of the world’s most powerful telescopes, looking at different types of light.

Read More from NASA's Chandra X-ray Observatory:

For more Chandra images, multimedia and related materials, visit:

Image, Text, Credits: X-ray: NASA/CXC/SAO/van Weeren et al.; Optical: NASA/STScI; Radio: NSF/NRAO/VLA/Lee Mohon.


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