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, October 16, 2014
Grid Squares
Today's Pluto Picture of the Day explains some of the search procedures used to locate follow-on targets for New Horizons once it finishes the Pluto encounter.
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