Earth An Anthology of Our Extraordinary Earth (Cally Oldershaw)

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Page 149 of 226 147 Auro as At nuts in p ce ca e h  r  wh rbitg Er. A t night, weir d and wo nderful shapes and curta ins of color can be seen mov ing in the sky . These beautiful light shows last about 30 minutes at a time. The y are c alled auro ras, or polar lights, because yo u can only see them near the poles. At the No rth P o le, they are called the northern lights, or aur ora b orealis, while the southern lights at the South P o le are know n as auror a austra l…