北极光是出现于星球北极的高磁纬地区上空的一种绚丽多彩的发光现象。而地球的极光,由来自地球磁层或太阳的高能带电粒子流(太阳风)使高层大气分子或原子激发(或电离)而产生。
奋进号航天飞机在1994年看到的南极光。
The southern lights are viewed from the space shuttle Endeavour in 1994.
在南半球,它的所谓南极光,或是南部灯。
In the southern Hemisphere, it's called aurora australis, or southern lights.
由于这些过程发生在两个半球,因此北极光和南极光就出现了。
Since these processes occur above the two hemispheres, both the Northern and the Southern light are created.
应用推荐