The most sophisticated robotic spacecraft ever built, the Cassini orbiter and the attached Huygens probe, were poised atop the launch vehicle, and seven years of interplanetary voyaging lay ahead.

• 在发射器顶端，即将展开数年行星际旅行的卡西尼号轨道船和惠更斯号探测器，是人类目前为止所建造最精密的自动太空船。