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)
Monday, March 27, 2017
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Today's Astronomy Picture of the Day brings us beyond the blue event horizon. A supermassive black hole consumes a star, the accretion disk heats up and produces a jet. Astounding universe we live in!