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)
Monday, March 19, 2018
Sky Disk
Today's Astronomy Picture of the Day shows the Nebra Sky Disk, a Bronze Age artifact that seems to depict the sky, including the Pleiades. "It's origin and purpose remain a mystery."
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