Admission is $3 per person. Please note that the seating capacity of the planetarium is 50 individuals. No reservations are accepted, and tickets will be sold on a first-come, first-serve basis. Doors will open 15 minutes prior to show. During the school year, on the evenings of public shows there will always be an additional 9 PM showing that is free to all ONU faculty, staff, and students. During the summer months, ONU faculty, staff, and students are admitted to all shows free of charge.