A large quasar group - the largest structure in the known universe at 4 billion light years across. Discovered by astronomers at UCLan in 2013 [1200x1920] via /r/spaceporn https://ift.tt/2SoUmIT
via Tumblr https://ift.tt/2SoWy35
A large quasar group - the largest structure in the known universe at 4 billion light years across. Discovered by astronomers at UCLan in 2013 [1200x1920] via /r/spaceporn https://ift.tt/2SoUmIT
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