ASTRO 122 deals with the origin and history of matter, as found in various astronomical bodies including planets, stars, and galaxies. Students will learn how clues to the history of matter are found in the abundance patterns of objects studies by astronomers. The text will be made available on the web for downloading. Additional details may be found at A href=http://www.astro.lsa.umich.edu/users/cowley/>http://www.astro.lsa.umich.edu/users/cowley/.