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)
Saturday, May 18, 2019
Three Shepherds
Today's Astronomy Picture of the Day shows Atlas, Daphnis and Pan, three of the "shepherd" or inner ring moons that orbit around Saturn and affect that planet's rings.
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