just–space: Frontier Fields Galaxy Cluster MACS J0717 : Frontier Fields 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
just–space: Frontier Fields Galaxy Cluster MACS J0717 : Frontier Fields 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