Wednesday, November 11, 2015

Pluto's Moons

Pluto has five known moons.  The largest, Charon, is tidally locked to Pluto, which is fairly normal, but the other four tiny ones have wildly different spin rates, axial tilts, and even shapes.

Likely, those bodies were captured by Pluto-Charon, perhaps recently, but scientists are still working the problem.

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