Book early for space

摘要

Thirty-six years ago John F Kennedy's immortal words set his country to work: 'I believe this nation should commit itself to achieving the goal, before this decade is out, of landing a man on the moon and returning him safely to earth.' And the world watched a dream become a reality. Since then mankind has continued to explore, learn and succeed in space. Every setback has taught important lessons that have allowed scientists and engineers to forge ahead. It is now time to take the next giant leap for mankind.