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, June 2, 2013
It's Full of Tubes
Today's Astronomy Picture of the Day would be considered a bad special effect if seen in a film but this is a real thing: a roll cloud over Uruguay.
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