Re: Moons
Um, you guys better review basic astronomy. Those 4 moons with atmospheres are not all around Jupiter. Io and Ganymede are, but Titan orbits Saturn, and Triton orbits Neptune.
Also, it is wrong to call Pluto's moon, Charon, a planet, because a planet is a large body orbiting a star. Moons orbit planets. And in general, anything that orbits something else is a satellite.
And there are ice moons in our solar system. Europa (Jupiter) is the most famous, since it is believed to be able to support life under its ice layer.
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