Another giant leap?

摘要

As an inspiring example of human en-deavour, a worldwide media extravaganza and a reminder of America's technological prowess at the height of the cold war, the moon landing of 1969 served several purposes. But the debate over the concrete scientific achievements of the National Aeronautics and Space Administration's expensive programme that put a dozen men on the moon has raged ever since. Now America's space agency faces a review of its human-space-flight plans. And we are hosting a debate-about whether nasa would be right to send humans back to the moon.