MYSTERIOUS MOISTURE IN THE MESOSPHERE: The 2019 season for noctilucent clouds (NLCs) has been remarkable, maybe the best ever, with NLCs appearing as far south as Los Angeles CA and Albuquerque NM. What's going on? NASA satellites have just found an important clue. An unusual wave of moisture is surging through the mesosphere, boosting water concentrations to their highest level in at least 12 years. Visit Spaceweather.com for the full story.
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Above: Noctilucent clouds over the Toruń Centre for Astronomy in Poland on June 18, 2019. Credit: Piotr Majewski. Check the NLC Photo Gallery for more sightings.
