Far far away, at the very edge of the Solar System lies Pluto, the ninth planet from the Sun. It is not only much smaller and less massive than every other planet, it is also smaller and less massive than seven moons of other planets. It has one natural satellite, Charon, which is half the size of Pluto.
There are many other interesting and controversial facts about this planet that you can learn if you download this screensaver.
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