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 5, 2018
Cratered Potato
Today's Astronomy Picture of the Day is an image of Phobos, one of the tiny moons of Mars, centering on Stickney Crater. Named for Chloe Angeline Stickney, mathematician, it was imaged by the Mars Reconnaissance Orbiter.
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