Scientists want to bring a chunk of the red planet down to Earth on what's called a sample-return mission.

科学家们希望将这颗红色星球的一大块带回地球，进行所谓的取样返回任务。

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The only convincing evidence for life on Mars will be when we have a microbe in the lab from a sample return mission.

火星上存在生命的唯一可信依据将会是我们实验室里有从返回任务带回的样本中提取的微生物。

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In between American Apollo manned flights, the Soviet Union launched this unmanned sample return mission to the moon on Sept. 12, 1970.

在两次美国阿波罗载人飞行期间，前苏联在1970年9月12日发射了这艘无人驾驶返回式月球取样飞船。

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Chang 'e 2 is set to follow next year with another orbital mission, followed by a rover in 2012 and a robotic sample-return mission in 2017. A manned trip could come after that.

接下来会发射“嫦娥2号”进行另外的轨道任务；2012年发射月球车；2017年用机器人进行月球表面取样然后返回；最后就是载人月球之旅。

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This is the first asteroid sample return mission.

这是首个收集小行星样本的任务。

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The George W. Bush-era Constellation project, for instance (later cancelled by Mr Obama), was supposedly going to be a return mission to the moon followed by a trip to Mars.

例如(后来被奥巴马取消)，据称乔治·布什时代的星座项目将是一个恢复到月球的任务，随后为火星之旅。

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The George W. Bush-era Constellation project, for instance (later cancelled by Mr Obama), was supposedly going to be a return mission to the moon followed by a trip to Mars.

例如(后来被奥巴马取消)，据称乔治·布什时代的星座项目将是一个恢复到月球的任务，随后为火星之旅。

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