When Stink learns that Pluto has flunked out of the Milky Way for being too shrimpy, he feels like he might just explode with a Big Bang. Stink has no choice but to take a stand for the sake of little planets (and little people) everywhere. Will he be smart enough to defeat a panel of big-shot scientists? Will he be strong enough to beat know-it-all Riley Rottenberger and her "Team KPB"? Will he succeed in rescuing Pluto from a fate worse than being swallowed by a black hole? Start the countdown for a funny (and very informative) out-of-this-world adventure--and prepare to have your universe rocked! Aligned to Common Core Standards and correlated to state standards. Chapter Books is an imprint of Spotlight, a division of ABDO.