Space is a challenge to our curiosity, imagination, and vision.
It contains knowledge which man must have to understand basic forces of nature. Space staggers the imagination with its endless immensity and majestic, awesome wonders. Space stimulates the vision as it expands our comprehension of a realm which, since the beginning of time, has generally been left to the vagaries of mystery, superstition, and speculation. And the effort to fathom its mysteries will test the mettle of our science and technology. America has accepted the challenge of space exploration.