The idea of looking for transplanted life stemmed from studies of meteorites from Mars that landed on Earth.
寻找被移植的生命体的想法源于对落在地球上的火星陨石的研究。
The price of bringing something to Mars that could terraform it would cost billions, possibly even trillions.
将火星地球化的材料带到火星就得花费上数十亿，甚至几万亿的钞票了。
The next Mars rover mission, scheduled for launch in November, will be looking for other places on Mars that might be even more hospitable to life.
下一个火星车计划在11月发射，将对火星上其它可能更适宜生命生存的地区进行探索。
Other scientists say it's too soon to draw that conclusion, however, and McKay says there are probably regions on Mars that were not as harmful to life.
然而另外一些科学家说这个结论还言之过早，McKay说火星上可能有些区域对生命不那么有害。
Although much has been made of Chinese lunar ambitions (a second Chinese probe will be launched in 2011), it is its activities in low Earth orbit and around Mars that will be more interesting.
尽管中国的探月工程成果辉煌(2011年中国将要发射第二个月球探测器)，但人们更感兴趣的是其低地球轨道与探测火星的活动。
The first images showed the "Arctic plain" where Phoenix came to rest - a region of Mars that has never been seen up close before.
第一幅图显示的是“凤凰号”所抵达的“北极平原”——火星上的一个从来没有被近距离观察过的区域。
Arvidson, who was on the Phoenix team and continues to work on the Nasa rovers, says the evidence from the latest missions points to a Mars that at least in the past could well have supported life.
奥维德森作为凤凰小组成员将继续开展漫游车的相关工作，他说最近任务得到的证据指明火星过去至少具备了孕育生命的能力。
Although, as yet, no man has ever set foot on Mars, that does not mean no one can do it in the future.
虽然到目前为止还没有人登上火星，但这并不是说将来也不会有。
The original Orion spacecraft was part of NASA's Constellation program to take man back to the moon, and later, to Mars. That program was canceled.
原有的“猎户座飞船”是美国宇航局“星座计划”的一部分，它可以搭载美国人重返月球，或者更远的火星。后来这个计划被取消了。
Thompson said scientists had found a canyon on Mars "that makes the Grand Canyon look like a small canyon, " where water could still be present.
汤普森说科学家们在火星上发现了一个峡谷，与这个峡谷相比，“美国大峡谷就显得很渺小了”。这个峡谷现在仍然可能有水。
Thompson said scientists had found a canyon on Mars "that makes the Grand Canyon look like a small canyon, " where water could still be present.
汤普森说科学家们在火星上发现了一个峡谷，与这个峡谷相比，“美国大峡谷就显得很渺小了”。这个峡谷现在仍然可能有水。
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