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)
Thursday, February 6, 2014
Layers Upon Layers
Today's Astronomy Picture of the Day shows the sky over the Yunnan Providence in China. Layers of terraces, layers of airglow and layers of stars.
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