Abell S1063, the Final Frontier (IMAGE)
Caption
Abell S1063, a galaxy cluster, was observed by the NASA/ESA Hubble Space Telescope as part of the Frontier Fields programme. The huge mass of the cluster acts as a cosmic magnifying glass and enlarges even more distant galaxies, so they become bright enough for Hubble to see.
Credit
NASA, ESA, and J. Lotz (STScI)
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