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)
Saturday, March 2, 2019
A Sign of Cosmic Spring
Today's Astronomy Picture of the Day brings us a Hubble Space Telescope image of NGC 6302, popularly known as The Butterfly Nebula.
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