Watts Up With That?: NASA detects strange electric-blue clouds over Antarctica

NASA’s AIM spacecraft is monitoring a vast ring of electric-blue clouds circling high above Antarctica. These are noctilucent clouds (NLCs), made of ice crystals frosting specks of “meteor smoke” in the mesosphere 83 km above the frozen continent. Here is an animation from the past week: This is the season for southern noctilucent clouds. Every year…

2018-01-08 20:39

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