NASA will not return humans to the moon but might visit an asteroid-and much later Mars.

美国航空航天局放弃其人类重返月球的计划，取而代之的是探访一颗小行星和经过较长的一段时间后再探访火星的计划。

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Orion was originally intended to serve as a crew capsule for the Constellation program, an ambitious NASA project to return humans to the moon and eventually create a full-time lunar base.

奥赖恩太空船原本打算作为星座计划(美国航天局的一项雄心勃勃计划，试图使人类重返月球，并最终建立一个专用的月球基地)的乘员太空舱。

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Spudis' plan involves "robotic resource extraction and the deployment of space-based fuel depots" using water from the moon before any humans return to its surface.

斯普德斯的计划包括“机器人提取资源以及部署天基燃料仓库”，在人类返回月球前使用这些水。

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Back then,there was much hope that humans would return soon and make a home on Earth's only natural satellite.

VOA: special.2010.04.28

All three had concerns that the space agency science programs were losing out in the push to return humans to the moon.

NPR: Budget Cuts Trigger NASA Resignations

That here we would be -- 40 years after the first moon landing -- still wondering when humans will return to the moon.

CNN: After walking on moon, astronauts trod various paths