Pluto has long been one of the most controversial objects in our Solar System. For decades it proudly held the title of the ...
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The problem with Pluto isn’t its planetary or nonplanetary status—it’s our insistence on declaring the world must be one or the other ...
DeVorkin, David H. 2013. "Pluto: The Problem Planet and Its Scientists." In Exploring the Solar System: The History and Science of Planetary Exploration. Launius ...