Entrance to the Reuben H. Fleet Space Theater and Science Center, a science museum and planetarium in Balboa Park. Established in 1973, it was the first science museum to combine interactive science exhibits with a planetarium and an IMAX Dome (OMNIMAX) theater. It is named after aviation pioneer Reuben H. Fleet, who founded the U.S. Air Mail service. Consolidated Aircraft, Fleet's company, built several aircraft used in World War II. Fleet and his family made the initial gift which established the Science Center.