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)
Thursday, May 15, 2014
In the Blue of Darkness
Today's Astronomy Picture of the Day shows a composite image from the edge of the Solar System: crescent-lit Neptune with rings and a crescent Triton.
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