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, July 16, 2019
Go For Launch
Today's Astronomy Picture of the Day is a short video showing the launch of Apollo 11, bringing humans to another sphere for the last time. Why haven't we been back?
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