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, September 23, 2019
A Half Year of Suns
Today's Astronomy Picture of the Day shows a half year, from winter solstice to summer solstice of images of the Sun.
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