Once when Emily Dickenson's father noticed a briliant display of northern lights in the sky over Massachusetts, he tolled a church bell to alert townspeople.

有一次，当著名的诗人埃米丽迪金森的父亲偶然看见马萨诸塞州上空一道炫目的北极光时，他立刻跑到教堂鸣钟以告知所有的市民。

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The Sami people believed that a person should be careful and quiet when in the presence of the northern lights (called guovssahasat in Northern Sami).

萨米人（译注：他们主要居住在拉普兰地区）认为，当极光（萨米人称其为“guovssahasat”）出现时，人们应该保持安静且万分小心。

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The Northern Lights happen when incoming solar radiation hits the earth's upper atmosphere and excites atoms to a new energy state, emitting colours which is energy in the form of light.

BBC: Aurora Borealis

More commonly known as the Northern Lights, when the spectacle is in full flow iridescent colors dance across the Arctic night, setting the sky ablaze with a range of cosmic greens, reds and yellows.

CNN: Chasing the elusive Northern Lights by boat