Here’s a tiny slice of the largest-ever 3D map of the cosmos

Each of these dots marks a galaxy Sloan Digital Sky Survey and Baryon Oscillation Spectroscopic Survey Each galaxy’s color represents its distance from us. The lightest yellow dots are the closest, and the darkest purple ones are the farthest away. Yellow = Roughly 6.4 billion light-years away; Red = Roughly 6.7 billion light-years away; Purple =…


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Here’s a tiny slice of the largest-ever 3D map of the cosmos

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