I know it's not new, I know it's not that important, but still, I feel upset that they downgraded Pluto from a planet to a dwarf planet! No matter what, I'll continue to consider Pluto a planet! I believe this is the kind of example, where scientific should show some flexibility. Pluto has been a planet for 76 years! (1930-2006), long enough to be part of the Family!
Also, since a while, astronomers have been searching for an unknown other planet in the solar system, which was so far referenced as: Planet X, that was great name, because X was 10, but also the symbol used for the unknown. Now, with the removal of Pluto, an hypothetical new planet is ... Planet 9 or Planet IX , which sounds way less good!