水是一个是否有生命存在的关键问题，即使是以微生物的形式，火星上和地球上都曾经存在，所有已知的生命都需要水。
Water is a key to the question of whether life, even in the form of microbes, ever existed on Mars. On Earth, all known forms of life require water.
一开始你可能不会这样认为，因为太阳系里和彗星发生过碰撞的行星都比火星还远，在那样的轨道上水永远是以冰的形式存在。
On first blush, you might think not: the planet where the comet or comets came to grief is farther out than Mars, in an orbit where water would be permanently frozen.
第三种形式的非热逸过程叫做光化学逃逸，只见于火星，但土卫六也可能存在这种现象。
A third nonthermal process known as photochemical escape operates on Mars and possibly on Titan.
这台火星车将进行土壤和岩石样本的分析，寻找有机物质，并探索火星上是否曾生存过微生物，现在是否还能够支持这种生命形式。
It will analyse soil and rock samples, looking for organic materials and asking whether Mars ever was, or is currently, capable of supporting microbial life.
大一些的微粒以扇状的形式沉积下来，扇尖朝向地面风的方向。而小一点的微粒仍然在火星上空中漂浮。
Larger particles get deposited in fans that point in the direction of surface winds, while smaller pieces remain suspended above.
你不如集中于一种形式的广告并一直重复一直到火星变成火焰。
Rather, you must focus on one form of advertising and just keep repeating it until that spark becomes a fire.
当火星成为火焰，全面出击并以各种形式的广告如商业、广播广告、杂志广告、网络广告、事件等广告促进，以便借势。
When the spark becomes a fire, start going all out and promote in other forms of advertising like commercials, radio ads, magazines ads, Internet ads, events in order to ride the momentum.
我们能够搜寻其它恒星，寻找象火星这样离我们很近的行星上的简单生命形式，并且在实验室中可以对生命起源的化学机理作更广泛的研究。
We can search for planets of other stars, seek simple forms of life on such nearby planets as Mars, and perform more extensive laboratory studies on the chemistry of the origin of life.
现在，火星的低温和稀薄的大气意味着水分只能以固体或水蒸气的形式存在-液态水要么凝固要么沸腾。
Today, the planet's low temperature and thin atmosphere means that water can only exist as solid ice or gaseous vapor — liquid water would either freeze or boil.
火星上有大量的二氧化碳——其中很多是以固态形式存在的。
据估计可能发现火星上的生命形式将恢复公众对太空探索的兴趣。
It is expected that the discovery of possible life-forms from the planet Mars will revive public interest in space exploration.
火星泥土中的矿物显示它的表面曾经存在着湖水、河水和其他形式的水，使生物得以存活，美国研究员周三报道。
WASHINGTON - Minerals in the soil of Mars show it was covered once by lakes, rivers and other bodies of water that could have supported life, US researchers reported on Wednesday.
已知火星表面下面有水的形式物质存在。
One known fact is that there are forms of water under the surface of Mars.
对于各种形式的合作关系(包括好而牢固关系)来说最艰难的日子将是8月26日，当时冥王星和火星发生了火拼。
One really difficult day for partnerships of all kinds, including the good and strong ones, will be August 26, when Pluto will oppose Mars.
他和他的同事们以书面形式详细比较了地球、金星和火星大气损失的具体情况。
He and his colleagues are working on paper that details the comparative atmospheric losses of Earth, Venus and Mars.
火星器到火星上不是去寻找生物，而是去寻找水，因为水是生命的基本要素，哪怕是曾经或至今仍然存的最简单的生物形式。
The rovers are not going to Mars looking for life but they will be looking for water, which is an essential ingredient8 for even the simplest forms of life to have existed or perhaps to still exist.
火星器到火星上不是去寻找生物，而是去寻找水，因为水是生命的基本要素，哪怕是曾经或至今仍然存的最简单的生物形式。
The rovers are not going to Mars looking for life but they will be looking for water, which is an essential ingredient8 for even the simplest forms of life to have existed or perhaps to still exist.
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