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)
Sunday, November 4, 2018
Saucer
Today's Astronomy Picture of the Day shows the post-landing scene for the return of 2001's Genesis probe, bringing a sample of our Sun back to our Earth. That first step back from orbit is the hardest.
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