NASA expects the spacecraft to enter Mercury's orbit on March 18, 2011.
美国航天局预计，飞船将于2011年3月18日进入水星的轨道。
On Earth, NASA says, white wispy cirrus clouds are made of ice crystals.
美国航天局说，在地球上稀疏的白色卷云是由冰晶所组成的。
Currently NASA envisions a long stay for a crew at Mars, about 500 days.
美国宇航局现在设想让宇航员在火星上长期停留大约500天。
NASA technicians noticed the computer problems during last-minute checks.
美国国家航空航天局技术人员在最后的检查中注意到了计算机问题。
In the late nineties, he helped launch the Astrobiology Institute at NASA.
九十年代后期，他帮助美国宇航局成立了天体生物研究所。
NASA scientist Chris Mckay says, "We may find aliens in space and talk with them."
美国国家航空航天局科学家克里斯·麦凯说：“我们可能会在太空中发现外星人，并与他们交谈。”
In March, NASA said there was once more water on Mars than in Earth's Arctic Ocean.
今年三月，美国航空航天局表示，火星曾经蕴藏的水量超过了地球上的北冰洋。
NASA offers to launch CubeSats free of charge for educational and research purposes.
美国宇航局免费发射立方体卫星以供教育和研究之用。
If I am to help NASA inspire a nation, how can I do it if I can't inspire a little boy?
我要帮助美国航空航天局启迪这个国家，如果我不能启迪一个小男孩的话，又怎么能做到呢？
The committee's chairman accused NASA of resting on its laurels after making it to the moon.
委员会主席谴责美国国家航空航天局在登月后便不思进取。
We need to get into schools and educate about what NASA has done, and what they are doing now.
我们需要走进学校，告诉人们NASA曾经做过什么，以及他们现在正在做什么。
A moon probe has found millions of tons of water on the moon's North Pole, NASA reported Monday.
NASA在本周一报告说，一个月球探测器在月球北极新发现了数百万吨的固态水。
Both rovers have now found evidence of past water activity on the planet, NASA announced last week.
上周美国宇航局宣布，两辆火星车现在都已经发现火星上曾经有水存在的证据。
NASA plans to test a full-size solar sail for chemical-free propulsion and a deep space atomic clock.
此外，美国国家航空航天局（下文简称NASA）还计划测试一个完整尺寸的太阳帆，为航天器提供绿色推进能源，以及测试一个深空原子钟。
In 1999, NASA sent ladybugs and aphids up in the space shuttle to test their movements in zero gravity.
1999年，NASA(美国航空航天局)将瓢虫和蚜虫带上了航天飞机以测试它们在失重状态下的行动。
So, in 1959, she accepted a job at NASA, the U. S. space agency, to set up a program in space astronomy.
因此，到了1959年，她接受了美国航空航天局的聘请，为他们建立太空天文学的计划。
Located 54 light-years away, the exoplanet is yet another member of the super-Earth club [source: NASA].
这颗系外行星位于54光年以外，是“超级地球俱乐部”的又一个成员[来源: NASA]。
Incredible photographs depicting the history behind man's journey into space have been released by NASA.
美国太空署发布了一些惊人的照片，描述了人类太空之旅背后尘封的历史。
Just at this time NASA decided to test some new high-altitude cameras by taking photographs of Yellowstone.
就在这个时候，美国国家航空航天局决定通过拍摄黄石公园的照片来测试一些新的高空照相机。
Meanwhile, hundreds of millions of kilometres away, another NASA spacecraft was approaching its destination.
与此同时，在数百万公里以外，另一艘美国宇航局的航天器正向目标进发。
The Hubble Space Telescope is a project of international cooperation between NASA and the European Space Agency.
哈勃太空望远镜是NASA以及欧洲空间局之间的国际合作项目。
NASA has released a new image of the busy center of our Milky Way Galaxy taken with the Spitzer Space Telescope.
NASA公布了一张史皮哲太空望远镜拍摄的银河系中心的新图片。
On August 4th, though, NASA announced the strongest evidence yet for the existence of liquid water on the surface.
然而，8月4日，美国宇航局发布了在火星表面存在液态水的最有力证据。
In lieu of an alarm clock, sleeping crews are woken by music played over the PA system by Nasa staff on the ground.
代替闹钟唤醒宇航员的是由地面上的NASA工作人员通过PA系统播放的音乐。
But the NASA rovers, Spirit and Opportunity, are the closest things we have to the space robots of science fiction.
但是NASA的探测器，勇气号和机遇号，是我们所具有的与科幻小说上的机器人最相近的东西。
In November, NASA crashed a probe into the Cabeus crater near the moon's South Pole and also found evidence of water.
去年11月，NASA在月球南极附近的Cabeus环形山进行的撞击实验也发现了水存在的证据。
How will NASA transform the International Space Station from a building site into a cutting-edge research laboratory?
美国国家航空航天局将如何把国际空间站从一个建筑工地改造成一个尖端的研究实验室？
How will NASA transform the International Space Station from a building site into a cutting-edge research laboratory?
美国国家航空航天局将如何把国际空间站从一个建筑工地改造成一个尖端的研究实验室？
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