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, July 30, 2013
Combined Image
Today's Astronomy Picture of the Day is a set of images from the Hubble Space Telescope and the Chandra X-Ray Observatory combined for a fantastic look at this strange nebula.
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