Space Weather News for June 26, 2019
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ANOMALOUS NOCTILUCENT CLOUDS: On the first night of northern summer, many Parisians were stunned when the midnight sky over the Eiffel Tower turned electric blue. It was the glow of noctilucent clouds (NLCs). The same clouds appeared in the USA a few nights later near Las Vegas, Salt Lake City, and Los Angeles. New data from NASA's satellite-based Microwave Limb Sounder explain these anomalous sightings: As June comes to an end, the mesosphere remains unusually wet at middle latitudes, creating rare conditions for the formation of NLCs. Visit Spaceweather.com for data and observing tips.
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