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)
Wednesday, August 1, 2018
Dusty Iris
Today's Astronomy Picture of the Day peers into the constellation of Cepheus and looks at the dusty environs of the Iris Nebula.
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