"To commemorate the 50th anniversary of the first successful planetary mission, Mariner 2 sent to Venus in 1962, the NASA History Program Office, the Division o

More than four decades have passed since a human first set foot on the Moon. Great strides have been made in our understanding of what is required to support an

Seeking to reenergize Americans' passion for the space program, the value of further exploration of the Moon, and the importance of human beings on the final fr