Fig. 1. Intensity distributions of the pure rotational Raman spectrum and Rayleigh-Mie spectrum scattered by atmospheric molecules.

图。1。大气分子散射的纯转动拉曼光谱和弹性散射的强度分布图。

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If life exists, scientists expect the planet's rays to be embedded with tell-tale chemical fingerprints of atmospheric molecules, such as oxygen and methane.

如果生命存在，科学家们希望这个行星上的光线能够嵌入大气层分子的化学指纹位移指示器，像氧气、甲烷一类的气体。

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It interferes, says Harald Stark of American's National Oceanic and Atmospheric Administration (NOAA), with the chemicals that mop up nasty molecules that are the raw materials of smog.

美国国家海洋和大气管理局(NOAA)的哈拉尔·斯塔克(Harald Stark)说，烟雾是由一些令人讨厌的分子构成的，某些化学物质能够破坏这些分子的结构，而灯光干扰了它们的作用。

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If there aren't any organics, that may suggest there's something on the planet destroying these molecules, says James Wray, assistant professor of Earth and atmospheric sciences at the Georgia Institute of Technology and collaborator on the Curiosity science team.

CNN: Rover Curiosity near Mars landing

At the current low levels of atmospheric carbon dioxide, rubisco in C3 plants can be fooled into substituting oxygen molecules for carbon-dioxide molecules.

WSJ: Harrison H. Schmitt and William Happer: In Defense of Carbon Dioxide