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)
Tuesday, September 30, 2014
Where's the Pot of Gold?
Today's Astronomy Picture of the Day is a atmospheric rarity: a full circle rainbow. If there is no end, can there be a beginning?
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