1. They measured earthshine: sunlight that reflects off the earth, hits the moon and bounces back.
他们对地球的反照光进行了测量：太阳光被地球反射到月球，然后又反射回来。
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2. You can see the spectrum of the Earth, this Earthshine spectrum, and that is a very clear signal.
你可以看到地球的光谱，这是地球反照光谱。是一个非常明确的讯号。
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3. How can we search for life on exoplanets? Step one: examine the Earth as if it were an exoplanet. That's the idea behind a recent look at earthshine.
4. The analysis of earthshine correctly revealed that the planet it came from has a partly cloudy atmosphere and is covered with oceans and some vegetation.
对地球反照光的分析显示：这个行星拥有一个云雾大气层，还被海洋和一些植被所覆盖。
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5. The analysis of earthshine correctly revealed that the planet it came from has a partly cloudy atmosphere and is covered with oceans and some vegetation.
