5 Remarkable Facts About the Northern Lights (Aurora Borealis) - The Countdown #39

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What causes the sky near the Earth's poles to light up with swirling, colorful light? In this episode of the Countdown, we explore the physics behind auroras and , future astronauts: more of The Countdown: Scientific American's website for more space news and information: to explore:Visit for more images of the Northern Lights from Abisko National Park in Forecast (NOAA) in the Sky: Aurora Borealis Explained (Institute of Physics) Casts: Auroras Underfoot (NASA) Lights, Earth's Auroras, Causes and Facts () History of Auroras (NASA)#.Us8Ya2RDvPZ-- Top image courtesy of Rafal Konieczny via Wikimedia Commons: :Host/writer: Sophie BushwickStory Advisors: Clara Moskowitz & Michael MoyerEditor: Joss FongProducer: Eric R. Olson

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