Galaxy+Cluster+MACS+by+Stephanie+F.

The important thing about this is,is that it is the most crowded collision of galaxy clusters has been identified by combining information from three different telescopes.

This galaxy is 4.5 billion light years from earth.It is one of the most complex galaxy clusters ever seen.Other well known clusters like the bullet cluster and macs j0025.4-1222, involve the collision of only two galaxy clusters and show much simpler geometry.

Hot gas is shown in an image from NASA'S Chandra X-ray Observatory, and galaxies are shown in an optical image from the NASA/ESA Hubble Space Telescope.The hot gas is colour-codedto show temperature,where the coolest gas is a reddish purple,the hottest gas is blue,and the temperatures between are purple.

The repeated collisions are caused by a 13 million old light year long stream of galaxies,gas,and dark matter known as filimant pouring into a region already full of matter.

info:Galaxy Cluster macs j0717.com

By Stephanie Fierst