Forty-five years ago this week, the American space program under NASA reached the apex of its more than a decade of scientific and technological development. For the first time, human beings stepped foot on the moon. Two clips courtesy of NASA show the launch of the Saturn V rocket, the largest rocket ever built, that took Apollo 11 all the way to the moon and back. The second clip shows Apollo 15 where NASA engineers built a rover (actually a car) to drive around the surface of the moon. The Lunar Rover as it was called, greatly enhanced the ability of the astronauts to collect data from further reaches of the lunar surface. A proud moment of American technological achievement that continues today with the successful exploration of Mars.