fact 1 : and do you know there's actually a planet closer to the sun? it's name is vulcan, it's extremely close to sun, not mercury. but unfortunately it got way too close to the sun and got burned alive.
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fact 2 : and also do you know about the sixth giant / planet 10? it's the fourth ice giant in the solar system, and it's probably bigger than Uranus, Neptune, and even planet X. unfortunately just like planet X, 6ith giant also got ejected by Jupiter and saturn's gravity.
fun fact : do you know there's actually a nineth planet, not pluto? his name is X and he was a ice giant like Uranus & Neptune, but he was thrown out by jupiter and saturn due to him being to close to their orbits.