The third mission, called Orion I, is planned to launch an actual Orion spacecraft into orbit, but on an unmanned test flight, Diller said.

迪勒说，第三次任务是称为“猎户座i”(Orion i)的无人飞行试验，将发射真正的猎户座太空船到轨道上。

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It has a strong space science effort under way, with two orbiting satellites having already been launched to the Moon and a third mission expected to put a rover on the lunar surface.

它正在进行一项宏伟的空间科学工作，已有两个轨道卫星被发射到月球上，而第三项任务预计将在月球表面投放探测车。

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The third will be achieved during the Chang'e 5 mission, which is set to take place before the end of this year, China Daily reported.

据《中国日报》报道，第三个将在“嫦娥5号”任务中实现，该任务将于今年年底前完成。

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The Apollo 13 mission was slated to be the third lunar landing.

VOA: standard.2010.04.04

The influence of the two leaders confronted the U.S. secretary of state at every stop of his six-nation swing through the Mideast, Europe and Asia this month his third mission as Washington's top diplomat.

WSJ: Kerry Focuses on Iran, North Korea Leaders

It comes from The Sound the Speed the Light, Mission of Burma's third post-reunion album, out Tuesday.

NPR: Mission Of Burma: The Story Begins Again

The spacecraft will have enough propellant left after the extended mission to potentially allow a third phase of operations.

BBC: Nasa extends Saturn probe mission