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)
Tuesday, April 25, 2017
The Cometeers Approach
Today's Astronomy Picture of the Day shows Comet C/2017 E4 (Lovejoy) and it's recently developed split ion tail.
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