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, January 16, 2017
Synchronization
Today's Astronomy Picture of the Day is a short video showing satellites in geosynchronous orbit moving through the constellation of Orion.
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