极地的冬夜寒冷而漫长,一棵棵大树散落在雪地上,大地披着厚厚的雪衣,在这宁静的夜晚,彩虹般的极光突然占据了整个天空。极光是高纬度地区特别是极地上空出现的自然现象。芬兰、挪威、俄罗斯、加拿大北部等高纬度国家和地区平均每年能看到上百次极光。亲眼看一场绚美的极光是很多人的梦想。 Polar winter night is cold and long, a big tree scattered in the snow, the earth covered with thick snow coat, in this quiet night, the rainbow aurora suddenly occupy the sky. Aurora is a natural phenomenon in high latitudes, especially over the polar regions. Hundreds of auroras are seen on average every year in Finland, Norway, Russia and northern Canada. Seeing a beautiful aurora is a lot of people’s dreams.