
Fifty years ago, at the height of the Cold War, the USSR launched Sputnik, the first satellite to orbit the earth, bringing America to its knees in awe - then fear. Initially thrilling as a marvel of science, Sputnik was soon viewed by America a weapon of mass destruction.
6.9
7.3
8.2
7.0
6.9
6.4
7.0
6.6
7.1
7.2
6.2
8.5
7.2
6.4
6.9
6.3
7.4
7.3