Astrochemistry is a basic introduction to the chemistry and physics of atmospheres other than Earth's. It is based on a second year chemistry course and assumes some knowledge of physical and organic chemistry along with some basic physics. Little prior knowledge of biology or astrophysics is assumed. Starting with an introduction to the chemical universe, the text covers stellar, meteorite, comet and planetary chemistry, before covering prebiotic chemistry and life in the solar system. Results from the latest research have been included throughout.