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)
Thursday, July 18, 2019
Shadows
Today's Astronomy Picture of the Day shows the Moon, cast in a reddish light due to the shadow of the Earth, obscured by a shadowy mountain.
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