traverse-our-universe: The Oddball of our Solar System: Pluto “The Pluto system consists of four tiny satellites — Nix, Hydra, Kerberos and Styx — orbiting a “binary planet” comprised of Pluto and its largest moon Charon, which, at 750 miles
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original: https://www.tumblr.com/blog/view/matiasywea/151166205571