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)
Thursday, June 9, 2016
Crescent at the Edge
Today's Astronomy Picture of the Day is a hauntingly beautiful shot from the New Horizons probe of a waning crescent "dwarf" planet Pluto.
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