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, February 12, 2016
Mergers and Acquisition
Today's Astronomy Picture of the Day is a short video depicting the "merger' between two black holes that generated the signal LIGO caught.
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