Combined View of Galaxy Cluster MACS J0516 This composite image sows MACS J0416.12403 (MACS J0416), located about 4.3 billion light-years from Earth. MACS J0416 is a pair of colliding galaxy clusters that will eventually merge to form a bigger cluster. Combined data from different telescopes are providing new answers about whether the collision is about to happen or has taken place. In MACS J0416 the dark matter, which leaves its gravitational imprint the optical data, is suggesting the clusters have not yet collided, the dark matter and hot gas should separate from each other.
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