Then some astronomers came up with the idea that atmospheric ammonia might have acted as a greenhouse gas.

后来一些天文学家提出，大气中的氨可能起到温室气体的作用。

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Some astronomers interpret these as sound waves.

有些天文学家把这种波解释成声波。

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Some astronomers have suggested that exploding stars could produce the positrons.

一些天文学家猜测爆炸的恒星能够产生这些正电子。

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Some astronomers thought nebulae were part of our Milky Way Galaxy.

VOA: special.2009.04.29

Astronomers have recently found some surprising evidence that some of those materials may have come from comets.

VOA: special.2009.09.30

Some astronomers argue that if a star gets too massive, it will disrupt the planetary formation process.

FORBES: Astronomers Locate Massive 'Super-Jupiter' Around Giant Star

Some astronomers thought they saw the February burst drifting slowly across the sky.

ECONOMIST: A symphony in gamma major

Some astronomers seemed to think that he and his colleagues had been too selective about the sample of comets they studied.

ECONOMIST: X marks the spot