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)
Wednesday, March 6, 2019
The Quiet Sun
Today's Astronomy Picture of the Day shows a relatively clear and quiet solar face. Where have all the sunspots gone? Far, far away.
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