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, April 23, 2018
More of an Autumn
Today's Astronomy Picture of the Day peeks with the infrared end of the spectrum at the Horsehead Nebula (IC 4592) in the constellation of Orion. The normally blue-tinted nebula takes on distinctly "warmer Fall" colors as a result.
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