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, March 15, 2017
Legacy Image
Today's Astronomy Picture of the Day is an image of the Cone Nebula courtesy of the hard-working Hubble Space Telescope.
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