Astronomers have seen what the Earth's atmosphere might look like from outer space by using the Moon as a giant mirror.

利用月亮当一面大镜子，天文学家已经了解了从外太空看地球大气层的模样。

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If there were any inhabitants of the moon, they would see our earth reflecting the light of the sun, again like a huge mirror hung in the sky.

假定月球上也有居民，他们就会看到，地球也像一面高悬在天空中的巨型的镜子一样，反射太阳光到月球上。

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Looking for transiting extrasolar planets is analogous to palle and colleagues' technique - using the Moon as a mirror to watch Earth transit the Sun.

观察太阳系外行星凌日的技术同Palle和他同事的技术近似，那就是利用月亮作为镜子看地球相对于太阳的凌日。

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The moon "shines" in reflected sunlight, so it is basically a weak mirror that is safe for Hubble to observe.

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The moon hung over this space, and it was as if the planet and its satellite were acting as mirror images of each other.

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