Nope! You are not reading something out of the book. We were all part of the crowd who said WHOA! when space agencies said that Pluto was not part of our Solar System. We now had only 8 planets and so far it has not been that pretty in the skies these days. There are also times we get depressed in one way or another because who's going to represent the underworld without Pluto right? Well don't despair! Because scientists are currently searching evidence about a very weird one right in our Solar System. Yes we are probably going to have a confirmed 9th planet before the year ends, and it will be called TYCHE (Ty-kee) I know you guys are going to be as excited as I am but we have to wait til NASA and other Space agencies would be able to take a look at it!
The one who discovered this new planet are actually two astrophysicists named Daniel Whitmire and John Matese from (Kamuning joke! hehe) the University of Louisiana at Lafayette which might not have been doing that much down south. They are pretty old already but said that if this discovery becomes official they promise to do cartwheels. It will be all up to the International Astronomical Union though, maybe they can trick them first to do the cartwheels before they announce if its real or not. The planet by the way is very far and a lot like Jupiter in structure and form. Mostly gas and trying to cool down but it is taking a long time to do that so the release of those hydrogen and helium is making the planet look big. It is almost boiling point there so you get the idea how hot it is. The heat they say came from its formation (so you have to study your Big Bang theory to understand that).
The only thing we can do for now is watch that sky and enjoy the night while they confirm if this is orbiting on our Sun making this the real 9th planet! By that time teachers can put up the old posters of the solar system and just erase the name of Pluto and make it Tyche hehehe!