The Clark Planetarium is situated within the Gateway District at the intersection of 400 West and 100 South in downtown Salt Lake City, Utah, USA. The Clark Planetarium opened in April 2003, replacing the historic Hansen Planetarium under a grant from the Clark Foundation in cooperation with Salt Lake County.
Hansen Dome Theater
This theater is the first "pitless" digital dome planetarium in the USA. The dome is a 55-foot (16.8 m) perforated aluminum dome manufactured by Astro-tec Manufacturing Inc. The theater seats 205 and features individual interactive seat button controls. Designed around Evans & Sutherland's Digistar planetarium system, two super-high resolution projectors work together to blend a single seamless video stream over the entire dome. What results is an entirely new way to experience the universe, in 3 dimensions (no glasses required) with a resolution far beyond high definition video. The new system installed in 2011 can display 4096 X 4096 resolution and 60 frames per second.
ATK IMAX Theater
This planetarium features an IMAX certified big screen theater. The ATK IMAX at Clark Planetarium has a science and nature emphasis by day with Hollywood-oriented films in the evening. Shows feature both 3-D and 2-D films. A major renovation in November, 2010 modernized the theater with digital projectors, a new screen, new seats, and a new sound system.
The Clark Planetarium features 10,000 square feet (930 m2) of free exhibits including the newly installed "Science on a Sphere," a computer animation globe by NOAA. Also unique is "Newton’s Daydream," the most ambitious audio-kinetic sculpture ever created by artist George Rhoads. Other popular exhibits include a Foucault pendulum, Earth Globe, Meteorites, Telescope displays, and updating video from the Hubble Space Telescope and NASA TV. The Clark Planetarium is also one of the few institutions to have an authentic moon rock sample on permanent loan from NASA. This rock was obtained from the Apollo 15 mission and is displayed in a special exhibit showing the Apollo moon landings and video footage of the astronauts collecting the displayed sample rock. New exhibits are added on a regular basis, including a rocketry display by ATK Launch Systems of Utah, a Solar Energy exhibit, and "Weight on Other Worlds."