Duracell has played its part throughout the USA Space Program. In 1963, Duracell was aboard Mercury 9 as Astronaut Gordon Cooper orbited the earth 22 times. On July 20, 1969, when the Apollo 11 landed the first humans on the moon, Duracell batteries were selected for the mission. Duracell batteries also powered the timer on the seismic experimental package that Neil Armstrong and Buzz Aldrin left behind at Tranquility Base on the lunar surface. And aboard the capsule, Duracell batteries powered