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Page last updated on: Tuesday, November 29, 2016 Electric-blue clouds appear over Antarctica This just in from NASA’s AIM spacecraft: The sky above Antarctica is glowing electric blue. A ring of bright noctilucent clouds has formed around the South Pole. The annual apparition of these clouds is one of the earliest on record, and may hint at the workings of climate change. Visit Spaceweather.com for more information. Share this page Follow us Advertisement