Geek Fact for June 22nd

In 1978, Pluto’s moon, Charon, was discovered by James Christy.

Charon is almost half the size of Pluto. The little moon is so big that Pluto and Charon are sometimes referred to as a double dwarf planet system.

Learn more at http://solarsystem.nasa.gov/planets/profile.cfm?Object=Plu_Charon

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