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)
Saturday, April 27, 2019
Computer, Enhance!
Today's Astronomy Picture of the Day brings a sense of context to the recent images of the area around the black hole in Messier 87.
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