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, October 24, 2018
Pillars of the Sky
Today's Astronomy Picture of the Day shows light pillars (reflections off of falling ice crystals) over Lake Superior.
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