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Aurora Borealis in Ersfjord, Norway. During the Northern Hemisphere's autumn and spring, solar magnetic fields are oriented in just the right way to cause "rips" in Earth's magnetic field. The resulting increase in solar wind on Earth encourages auroral sky shows but can also damage satellite technology and electrical grids on the ground. (National Geographic)
Wings of Lights, Bright auroras seem to spread like wings over the mountains outside of Tromsø, Norway