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, March 30, 2014
True Colors
Today's Astronomy Picture of the Day shows Jupiter's geologically-active (putting that mildly) moon Io in "true light".
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