The Great Valley Museum & Planetarium, located on the west campus of Modesto Junior College, is dedicated to interpreting the natural history, geology, and ecology of California's Great Central Valley. Its mission is to "explore, understand, and appreciate the Great Central Valley" through engaging exhibits, live animal displays, meticulously recreated habitat dioramas, and an immersive planetarium experience. The museum offers hands-on activities, interactive displays, and educational programs for all ages, including school group tours and outreach programs. It also hosts special events like "Science Night at the Museum," which provides evening access to exhibits, planetarium shows, and telescope viewings. The museum serves as a valuable resource for the community and a learning laboratory for Modesto Junior College students, promoting science literacy and inspiring future scientists.