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)
Wednesday, July 24, 2019
Erosion of the System
Today's Astronomy Picture of the Day captures zodiacal light, dust in our solar system, possibly created by eroding comets (so to speak).
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