Fierce Solar Storm Pelts Earth, Creating Extremely Rare Pink Aurora Borealis
On November 3rd, a temporary crack in Earth’s magnetic field set off rare pink auroras in the skies of northern Norway. Image credit: Markus Varik/Greenlander Auroras are mostly caused by the solar wind, as charged energetic particles from the Sun penetrate the magnetosphere, Earth’s magnetic field, which usually stops cosmic rays. At the two poles, …
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