Comet Hale-Bopp, discovered in 1995 was an unusually bright comet.

1995年发现的海尔-波普彗星是一颗异常明亮的彗星。

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They found deuterium at higher levels than it's found in Earth water - but at levels similar to the comets Hale-Bopp, Hyakutake and Halley.

他们发现，同地球上的水相比，氘的含量更高——但同海尔·波普彗星、哈库塔克彗星和哈雷上的水有着相似的平。

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They found deuterium at higher levels than it's found in Earth water —but at levels similar to the comets Hale-Bopp, Hyakutake and Halley.

他们发现，同地球上的水相比，氘的含量更高——但同海尔·波普彗星、哈库塔克彗星和哈雷上的水有着相似的平。

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It was two amateurs, for example, who discovered the Hale-Bopp comet in 1995.

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If such a comet were the size of Hale-Bopp, Eichler says, the resulting solar flare would by far be the largest ever observed.

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They believed that they were about to be taken to a higher level by a spacecraft travelling in the wake of the Hale-Bopp comet.

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