His research for NASA's Jet Propulsion Laboratory as a geophysicist helps launch spacecraft at the correct time and position to reach their exact destinations.

作为地球物理学者，他在美国航天航空局喷气动力实验室所做的研究，帮助在正确的时间和正确的位置发射宇宙飞船，并且使之准确到达目的地。

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The rocket is Ares I-X - a suborbital prototype for the Ares I rocket NASA plans to use to launch its shuttle successor, the Orion spacecraft.

这次发射的火箭“战神i - X”是“战神i”(Ares I)的亚轨道原型机，美国国家航空航天局计划使用“战神i”发射猎户座太空船。

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The rocket is Ares I-X? A suborbital prototype for the Ares I rocket NASA plans to use to launch its shuttle successor, the Orion spacecraft.

这次发射的火箭“战神i - X”是“战神i”(Ares I)的亚轨道原型机，美国国家航空航天局计划使用“战神i”发射猎户座太空船。

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Next year, the Chinese plan to launch a small space laboratory to practice docking of spacecraft in orbit.

VOA: special.2010.04.28

Space officials decided the weather was safe enough for them to launch the spacecraft.

VOA: special.2009.07.29

The RPS batteries are not to launch the spacecraft, but to keep instruments running over several decades.

BBC: Nuclear space batteries could boost Sellafield jobs

If all goes well, NASA will launch the first spacecraft to Pluto today.

NPR: NASA Sends Spacecraft to Pluto

But until the commercial astronaut taxis are ready to go, the nation will be dependent on Russian Soyuz spacecraft to launch its crews to low-Earth orbit.

MSN: Romney pledges to keep US the leader in space exploration