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)
Sunday, August 3, 2014
Approach Vector
Today's Astronomy Picture of the Day shows Space Shuttle Endeavour on approach to the International Space Station in 2010.
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