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, July 1, 2019
Coronal Activity
Today's Astronomy Picture of the Day shows coronal activity, solar prominences and even the faint face of the Moon in this image from the August 2017 solar eclipse.
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