Arrive early. So much to see and do!! More than 1 days worth. Ride the 90 minute Tram Tour first thing when you arrive. Get tickets for Control Tour before getting on the Tram Tour! Allow 2 hours for Tram Tour before going on Control Room Tour. Must Do's - Tram Tour, Control Room Tour, Touch Moon Rock, Watch different movies, Many displays to view and read about all parts of Space voyages, Walk through Space Shuttle and 747 Ferry Jet liner. There are discount for seniors, students and military. Differently worth visiting when in the Houston area. If you are visiting during the holidays and have the time be sure to stay for the nightly show of lights!