RT @Earth_Pics: Size of the Andromeda galaxy in the sky if it were not so dim http://t.co/sZJygCuJ7c
RT @Earth_Pics: Size of the Andromeda galaxy in th…
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RT @Earth_Pics: Size of the Andromeda galaxy in the sky if it were not so dim http://t.co/sZJygCuJ7c