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by David Turell , Friday, November 16, 2012, 01:16 (4392 days ago)
http://blogs.scientificamerican.com/basic-space/2012/11/13/how-a-new-map-of-the-early-u... like crazy
, Friday, November 16, 2012, 01:16 (4392 days ago), Friday, November 16, 2012, 01:16 (4392 days ago)