Video: Transitioning from the 太空 Shuttle to the Constellation System 

Gerstenmaier dissects a problem that recently grounded the shuttle, coming at it from the perspective of both an engineer, and a top-level manager with responsibility to the highest levels of government.
密码: video, transitioning, from the, 航天飞机, 太空穿梭机, to the, constellation, system, lecture