This is a completely updated and revised version of a monograph published in 2002 by the NASA History Office under the original title Deep Space Chronicle: A Ch

In January 2004, President Bush announced a new space policy directed at human and robotic exploration of space. The National Academies released a report at the

"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