IMG_7891 Hubble 1929 diagram redshift
proportional to distance
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Uploaded on April 10, 2013
Taken on March 25, 2013
IMG_7891 Hubble 1929 diagram redshift
proportional to distance
86
views
0
faves
0
comments
Uploaded on April 10, 2013
Taken on March 25, 2013