These great hollow globes of artificial super-metals, and artificial transparent adamant, ranged in size from the earliest and smallest structures, which were no bigger than a very small asteroid, to spheres considerably larger than the Earth. (Olaf Stapledon, STAR MAKER)
Saturday, December 12, 2015
Rendezvous
Today's Astronomy Picture of the Day shows the dance between the morning planets and the Moon, with a new partner: Comet C/2013 US10 (Catalina) joins the party.
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