Meteorite research is fundamental to our understanding of the origin and early history of the Solar System.Some meteorites were produced by melting on asteroids, a few are from the Moon and others are martian.Their study yields a chronology of the first 100 million years of Solar System history and provides evidence that our Sun went through a highly radiative, T Tauri stage.This book considers the mechanism and timing of core formation and basaltic volcanism on asteroids and the effects of heating water-rich bodies.Results from meteorite research are placed in a galactic setting, and a theory is proposed for the origin of the planets of our Solar System.This advanced yet succinct introduction provides a classification of meteorites and discusses their ages and origin.It will be valuable to graduate students and scientists in astrophysics, space research, cosmochemistry, geochemistry, isotope geology and earth and planetary sciences.