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)
Wednesday, September 3, 2014
Mounting Power
Today's Pluto Picture of the Day shows technicians installing the radioisotope thermoelectric generator assembly onto the New Horizons flight vehicle.
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