Ronn Murray braved knee-deep snow and bitter Alaska cold to capture this pulsating green-hued aurora in 4K definition. Crank the resolution way up to 4K and enjoy a beautiful wintry nighttime hike with Ronn, Marketa, their dog Angus, and the universe unfolding above, then check out his highlight reel below.
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How do you know that you just experienced a more-impressive-than-average display of the Northern Lights? When somebody can take a picture like the one above in freaking Arkansas. Arkansas, people.
Photographed by Brian Emfinger in Ozark, Arkansas, these auroras were triggered by a big coronal mass ejection—a burst of energy from the Sun that can interact with our atmosphere to produce particularly spectacular examples of the aurora borealis. I missed the light show last night, but Spaceweather.com has a collection of photos taken around the world, from Michigan to Norway.