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, February 13, 2017
Polar Flyby
Today's Astronomy Picture of the Day is another jaw-dropping image from the Juno mission to Jupiter. How many hurricane-like clouds can you spot?
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