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)
Saturday, May 11, 2019
Sky Streak
Today's Astronomy Picture of the Day shows the path of a Falcon 9 rocket (launch, MECO, staging, and even the return of the first stage) on May 4, 2019.
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