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)
Sunday, October 21, 2018
Crowded Skies
Today's Astronomy Picture of the Day shows a very busy sky. Comet 21P/Giacobini-Zinner shares the skies with a transient meteor, backed by the galactic magnificence of The Seagull Nebula.
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