Allan Boyle, msnbc.com's science editor and the creator of Cosmic Log, traces tiny Pluto's ups and downs, its strange appeal, the reasons behind its demotion, and the reasons why it should be set back in the planetary pantheon. The Case for Pluto is the tale of a cosmic underdog that has captured the hearts of millions: an endearing little planet that is changing the way we see the universe beyond our backyard.