Number of layers: 21
Weight: 185 pounds
The California Science Center's Apollo spacesuit was worn into space by command module pilot Thomas "Ken" Mattingly (on the left in the photo above) on the Apollo 16 mission to the moon in April 1972.
The Apollo spacesuits, also known as extravehicular mobility units (EMUs), were designed to protect astronauts from the main dangers in space: extreme temperatures, depressurization, radiation and micrometeoroids. The spacesuit includes a one-piece undergarment that contains over 300 feet of plastic tubing and serves as a cooling and ventilation system. All suit functions are monitored and regulated from a control board mounted on the chestpack. The suit's backpack provided up to eight hours of oxygen.
The Science Center's Apollo Spacesuit
Thomas K. Mattingly II, command module pilot on the Apollo 16 mission in April 1972, wore this suit on a spacewalk to collect film from outside the spacecraft. Other members of the Apollo 16 crew included John W. Young (commander) and Charles M. Duke, Jr. (lunar module pilot). The suit is on loan from the National Air and Space Museum, Smithsonian Institution.