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 22, 2018
Like Sands in an Hourglass
Today's Astronomy Picture of the Day shows the arc of the Milky Way captured and enhanced in the glass of a "crystal ball".
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