内皮尔教授的理论认为，当地球进入一颗大彗星脱落的密集的尾状碎片带时，那次灾难性的毁灭就发生了。

Professor Napier's theory suggests the devastation took place when the Earth strayed into a dense trail of fragments shed by a large comet.

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该市（和内皮尔市）曾在1931年大地震中毁于一旦，后来以当时流行的建筑风格修复此城。

The area was devastated by a huge earthquake in 1931 (as was Napier) then rebuilt using architectural styles of the times.

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内皮尔教授说，在2万至3万年前，一颗彗星突然冲进太阳系内部，并且从那时起就一直被瓦解。

Prof Napier says a comet swooped into the inner solar system between 20, 000 and 30, 000 years ago and has been breaking apart ever since.

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