Some geoscientists think that this catastrophe involved a meteor striking the earth.

一些地球科学家认为这次灾难与一颗流星撞击地球有关。

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Now astronomers think it was a meteor that burned up high in the atmosphere.

现在天文学家认为那是一颗在高空燃烧的流星。

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They also think they can explain the bright flash seen from the earth earlier this month: it was a meteor, though a small one that didn't get very far.

他们还认为他们可以解释本月早些时候，从地球上看到的明亮闪光，尽管是很小的一颗流星，但没有飞多远。

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Fifty thousand years ago, a meteor carrying trace amounts of silicone carbide crashed into present-day Arizona.

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Some people wondered whether Facebook was just a meteor that, like Myspace, would crash.

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Once a piece of space-rock enters our atmosphere, it becomes known as a meteor.

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