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, July 6, 2014
Light Tunnel
Today's Astronomy Picture of the Day shows the 2001 apparition of Manhattanhenge. Next occurrence of this is coming up later in July.
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