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, June 20, 2014
Trails
Today's Astronomy Picture of the Day has star trails above and vehicle headlight trails below. And lots of windows. Oy, light pollution.
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