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Title: What is unique about the Pluto-Charon system, compared to all other planets in the solar ... Post by: doit_the_clown on Mar 18, 2017 What is unique about the Pluto-Charon system, compared to all other planets in the solar system?
A) Both Pluto and Charon are volcanically active, with lava flows and vents of sulfur dioxide gas. B) Charon is an icy moon, but it is in orbit around a giant planet made mostly of liquid hydrogen. C) Pluto has only one satellite. D) Both Pluto and Charon are in synchronous rotation, so each object maintains the same face toward the other object at all times. Title: Re: What is unique about the Pluto-Charon system, compared to all other planets in the solar ... Post by: hyponotica on Mar 18, 2017 Content hidden
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