Almost all the bright objects in this picture are galaxies in the Abell 2218 cluster. The cluster is really big, so its gravity can actually bend light and act like a telescope. It focuses the light of galaxies that lie behind it. These galaxies are about three billion light-years away in the constellation Draco. This "cluster telescope" has allowed astronomers to see a galaxy at redshift 5.58. So far, that is the farthest away galaxy that has been measured. This picture was taken by the Hubble Telescope.
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