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, January 18, 2018
Blue Interloper
Today's Astronomy Picture of the Day shows blue comet C/2016 R2 PanSTARRS cruising through open cluster Hyades in the constellation of Taurus.
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