Apparently now Pluto has be de-classified as a plant because a bunch of astronomers have redefined what a planet is, and Pluto just didn't make the cut. We only have eight planets, not nine.
Science is so fickle, they can't even make up their minds about this sort of stuff. I now have to unlearn everything I've learned about the Solar System. I feel double sorry for all the schools and students who have to buy brand new editions of science textbooks stating that Pluto is not a planet in our Solar System. All astronomy papers must also be amended, theories thrown out.
Really the only winners here are the people who sell this information. That's what you get for changing your minds all the time.