ESSENTIAL ASTRONOMY playlist: \r
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Google Tech Talk (more info below) December 1, 2011 Presented by Raja (Puragra) GuhaThakurta. ABSTRACT The lecture Our Place in the Cosmos explains .\r
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ESSENTIAL ASTRONOMY playlist: Google Tech Talk (more info below) December 1, 2011 Presented by Raja (Puragra) GuhaThakurta. ABSTRACT The lecture .
