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)
Monday, April 3, 2017
Polar Hex
Today's Astronomy Picture of the Day is a magnificent image of Saturn thanks to Cassini. We're going to miss that spacecraft!
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