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)
Tuesday, April 16, 2019
Airbrushed Universe
Today's Astronomy Picture of the Day brings us rich textures and deep colors in nebula complexes found in the constellation of Monoceros.
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