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, September 24, 2018
Rock Hoppers
On occasion, classic science fiction refers to asteroid miners as "rock hoppers" (usually the term is "belter", but there's a lot of classic science fiction). Today's Astronomy Picture of the Day brings us actual rock hoppers in the form of micro probes exploring the surface of Asteroid Ryugu.
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