The Society of Physics Students (SPS) is a professional association explicitly designed for students. Membership, which is through collegiate chapters, is open to anyone interested in physics. SPS is the fourth largest professional physics society in the US. The Carthage College Chapter has been in existence since 1995 and currently has 14 student and three faculty members. Activities have included field trips to Fermilab and the Yerkes Observatory, creation and presentation of physics demos in the "Flying Circus of Physics." as well as a forthcoming research expedition to study the Northern Lights.