They also took into account that with a more massive young Sun, the planets would be closer to the Sun than they are today.

他们还考虑到，如果有了更大的新太阳，这些行星会比现在更接近太阳。

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As a comet gets closer to the sun, some gases in it begin to unfreeze.

当彗星接近太阳时，其中的一些气体开始解冻。

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When Earth's orbit is more elliptical, Earth is actually closer to the sun during part of the year.

当地球的轨道更接近椭圆时，地球实际上在一年的一部分时间里更接近太阳。

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We somehow or other need fake eagles, and the closer to the sun they fly before their downfall, the more we are gratified.

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As a comet gets closer to the sun, the sun's heat causes these elements to melt, spewing out dust and gas in a brilliant tail.

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Curiosity was landing on Mars in an uneasy season, when the planet was swinging closer to the sun on its eccentric orbit, stirring up an already volatile climate.

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