31 May 2013
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12 May 2013
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2 May 2013
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1 May 2013


20 Apr 2013
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13 Apr 2013
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14 Mar 2013
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4 Mar 2013
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reblogged:
itsfullofstars
source:
sagansense

sagansense: Above Copernicus Crater Copernicus is 93 km wide and is located within the Mare Imbrium Basin, northern nearside of the Moon (10 degrees N., 20 degrees W.). Image shows crater floor, floor mounds, rim, and rayed ejecta. Rays from the ejecta are superposed on all other surrounding terrains which places the crater in its namesake age group: the Copernican system, established as the youngest assemblage of rocks on the Moon (Shoemaker and Hackman, 1962, The Moon: London, Academic Press, p.289- 300). credit: NASA/JPL/USGS

23 Feb 2013
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