The 2009 Gordon Conference on the Origins of Solar Systems will present current research on the formation of stars and planets. We will bring together astronomers, planetary scientists and meteoriticists to provide a multi-disciplinary approach to this topic, and will mix scientists from different disciplines within the sessions. The speakers will all be very active leaders in their fields. There have been many exciting recent discoveries on this topic, including analyses of returned cometary material (from the NASA Stardust mission), and new information about the composition of the Sun. Detections of new exoplanets from the Kepler and CoRoT missions are expected soon. An abundance of new data on planets is now inspiring the development of novel models for the formation, evolution and structure of planetary systems both in our own solar system and beyond. All of these issues will be discussed at the 2009 Conference. Students and postdocs are very much encouraged to attend the Conference and to present their work in the form of posters. The structure of this Conference allows for formal discussion sessions in the mornings and evenings and informal networking and discussion in the afternoons. The friendly atmosphere and unique range of disciplines represented encourages effective new collaborations to be made.