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, October 26, 2018
Northern Clouds
Today's Astronomy Picture of the Day shows nebula in the rich starfields of Cassiopeia. IC 59 and IC 63 show their jewels.
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