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 6, 2014
Tumbling Dice
Today's Astronomy Picture of the Day shows three CubeSats, small student-designed experimental satellites, being released from the International Space Station.
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