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Last night’s strong geomagnetic storm painted the sky with an unusually rare red aurora — and from the International Spa…

Last night’s strong geomagnetic storm painted the sky with an unusually rare red aurora — and from the International Space Station it looked like the crew was literally flying through the glowing curtain, Russian cosmonaut Sergey Kud-Sverchkov said. Why the red? Green auroras typically glow around…