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)
Friday, January 6, 2017
One Moon, Two Planets
Today's Astronomy Picture of the Day shows a crescent Moon and a crescent planet rising in the skies of another planet.
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