它们可以到达更远的轨道；美国国家航空航天局计划在其未来的大部分发射任务（尤其是去月球和火星的）中携带立方体卫星。
They can attain more distant orbits; NASA plans for most of its future earth escaping payloads (to the moon and Mars especially) to carry CubeSats.
美国最后一次航天飞机的发射任务已经开始倒计时。
The countdown has started for the final launch of an American space shuttle.
虽然这是火箭发射任务，你无法确保百分之百的万无一失。
While this is the rocket business and you can? T make anything one hundred percent safe,?
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