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Noctilucent Clouds, Behaving Strangely
by Dr. Tony Phillips (Spaceweather.com) March 2, 2015: The southern season for noctilucent clouds (NLCs) has come to an end. NASA’s AIM spacecraft observed the last wisps of electric-blue over...
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Noctilucent Cloud Season Begins (May 2015)
by Dr. Tony Phillips (Spaceweather.com) May 23, 2015: NASA’s AIM spacecraft has spotted a luminous patch of electric-blue drifting across the Arctic Circle. The sighting marks the beginning of the 2015...
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Climate Change at the Edge of Space
by Dr. Tony Phillips (Spaceweather.com) In the summer of 1885, sky watchers around northern Europe noticed something strange. Sunsets weren’t the same any more. The red and orange colors they were...
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Mesospheric Bore
Nov. 29, 2016: This month, a lot is happening in the mesosphere. The mesosphere is a layer of Earth’s atmosphere above the stratosphere; it is the realm of sprites, noctilucent clouds (NLCs), and...
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Mystery of the Missing Noctilucent Clouds
June 15, 2017: In late May 2017, observers in Europe began seeing electric-blue tendrils snaking over the western horizon at sunset. The summer season for noctilucent clouds (NLCs) was apparently...
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