Hours: Displays open Mon.-Wed. noon-5, Thurs.-Fri. noon-9, Sat. 10-5, early Jan. to mid-Dec. Phone ahead to confirm planetarium show schedule. Observatory open Thurs.-Fri. 8:30-10 p.m. (weather permitting). Center closed Martin Luther King Jr. Day, Presidents Day, school spring break, Memorial Day, July 4, Labor Day, Thanksgiving. Phone ahead to confirm schedule.