Monday, July 16, 2012



Even though former 9th planet Pluto in our solar system was demoted recently to a category just short of being a planet, we've been learning more and more about its local system. We once thought Pluto had but a solitary, giant (relatively) moon, Charon. Now we know that it has 5 moons, two still unnamed. That's more that the four inner planets combined (as Mercury and Venus have none). Small consolation there. If it's such a measly little planetoid, how come it has so many moons?

We'll learn a lot more when our robot explorer shows up in just about three years. Can't wait.


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