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)
Friday, September 4, 2015
Arc and Glow
Today's Astronomy Picture of the Day brings us the arc of the Milky Way again: this time we are in the southern skies and in addition to the Milky Way, the sky is illuminated by Airglow Australis.
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