The Hayden Planetarium (often called "The Hayden Sphere" or "The Great Sphere") has, since 2000, been one of the two main attractions within the Rose Center. It was established by the State of New York in 1933, some of the funding coming from philanthropist Charles Hayden. The top half of the Hayden Sphere houses the Star Theater, which uses high-resolution fulldome video to project “space shows” based on scientific visualization of current astrophysical data, in addition to a customized Zeiss Star Projector system replicating an accurate night sky as seen from Earth.