The Space Theater opened to the public in August of 1986 as part of the first phase of construction of this museum. Originally it was equipped with 15/70 IMAX film projection system from Canada and space simulating system from GOTO Optical Institute in Japan. In 1990, it broke attendance records with more than 660,000 audience members. In July of 2015, the Space Theater was updated with Digistar 5 digital theater and planetarium systems from E&S in the US, allowing for a more flexible and lively theater and planetarium experience.
The Space Theater features a semi-spherical dome screen. On a 30-degree slope and in stair formation are a total of 300 seats. Each program lasts for one hour. In addition to the showing of science and ecological films, there is a ten-minute planetarium session. On weekdays (Tuesdays through Fridays), a one-hour free planetarium session begins at 9:00 a.m. (Reservations are required for groups. School groups are welcome. At least 50 people are needed to begin this session. Individuals may enter if seats are available.)