The atmosphere of Mars could not support life.
生命无法在火星的大气环境下生存。
The atmosphere of Mars is not so dense as that of the earth.
火星的大气密度不及地球的大。
But Yinghuo 1 will also be exploring the upper atmosphere of mars-aiming to discover why water vanished from the red planet.
但“萤火虫1号”也将探索火星的外大气层，目的是找出这颗红色星球上水消失了的原因。
However, there were hurdles to overcome yet, the atmosphere of Mars had far less heat-retaining capacity than earth's and almost no oxygen.
然而，仍然有障碍要克服，气氛破坏超过地球、几乎没有氧有远远比较不保有热能力。
Although liquids freeze and evaporate quickly into the thin atmosphere of Mars, persistent winds may make large sand dunes appear to flow and even drip like a liquid.
尽管火星上的液体凝结并很快地蒸发到稀薄的大气中，但是如今的风使得火星表面形成巨大的流动沙丘，看起来就像落下的水滴一样。
Aerogel material has lower thermal conductivity and performs best in the atmosphere of Mars, but the problems of dust control and mechanical durability cannot be avoided.
气凝胶类材料具有较低的热导率，在火星大气环境下具有最好的隔热性能，但无法规避粉尘污染及机械耐久性等问题。
Mars has an insubstantial atmosphere, consisting almost entirely of carbon dioxide.
火星周围有一个薄薄的大气层，几乎全由二氧化碳构成。
The absence of an oxygen atmosphere on Mars and other planets in our solar system means that these planets also lack an ozone shield that would protect surface-dwelling life from UV radiation.
在火星和我们太阳系的其他行星上没有氧气，这意味着这些行星也缺乏保护地表生物免受紫外线辐射的臭氧层。
The first, to launch in 2016, is a satellite that would track down the sources of methane and other trace gases recently detected in Mars' atmosphere.
第一个是，2016年发射一颗人造卫星，用于跟踪最近在火星大气层检测到的甲烷和其他气体。
The tilt and orbit of Mars and its thin atmosphere also would have a big impact on its ice ages.
火星的斜度和轨道以及它的稀薄大气可能也会对其冰河时期产生很大的影响。
The atmosphere on Mars is very thin and contains very little oxygen, while that of Venus is made up of gases which we could not possibly breathe.
火星上的大气层很稀薄，只含有少量的氧；而金星上的 大气层，则是由我们几乎无法呼吸的气体构成的。
The atmosphere on Mars is very thin and contains very little oxygen, while that of Venus is made up of gases which we could not possibly breathe.
火星上的大气层很稀薄，只含有少量的氧；而金星上的 大气层，则是由我们几乎无法呼吸的气体构成的。
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