*The "back and forth" issue of Pluto's planet "status", does that not mean anything?
*It obits the sun, has moons, just like the other planets.
*The Kuiper Belt containing bigger objects.
*The International Astronomical Union declaring it a "dwarf planet"; is this final?
*Does Pluto not being a planet mean there are now and will forever only be eight planets in the solar system?
*Will the human race ever reach Pluto?