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)
Wednesday, January 11, 2017
Insert Obligatory Star Wars Reference Here
Today's Astronomy Picture of the Day comes courtesy of the long-running Cassini orbiter, now in the final stages of the mission. Saturn's moon Mimas displays crater Herschel with a very visible large central peak. Death Star, anyone?
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