Visitor center free. Guided tours $7.75; $3 (ages 7-12). All-day pass $9.75; $3.25 (ages 7-12). Intro-level Nightly Observation Program $55; $52 (ages 5-17, ages 62+ and students and military with ID). Reservations are required for all night observation programs and should be made 1 month in advance.
Visitor center daily 9-3:45. Guided tours of the facility are offered at 10, 11:30 and 1:30. Three types of stargazing programs are available only with reservations and begin at dusk, Sept. to mid-July. Phone to confirm holiday closure and schedule. Closed Jan. 1, Thanksgiving and Christmas.