Pluto is a dwarf planet. Pluto can’t be a planet because it’s just one of many similar objects that occupy Pluto’s general orbit. This wasn’t known at the time of its discovery, however.
18 posted on 04/16/2014 2:03:09 PM PDT by Telepathic Intruder
(The only thing the Left has learned from the failures of socialism is not to call it that)