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Noctilucent clouds over St Mary's Lighthouse near Whitley Bay in North Tyneside, Tyne and Wear, England on Friday, June 16, 2023. Noctilucent clouds are extremely rare very high clouds seen in the night sky, usually on clear, summer nights, one hour after sunset and an hour before sunrise when the sun sits between –6 and –10 degrees.They become visible about the same time as the brightest stars and are usually bluish or silver. (Photo by Owen Humphreys/PA Images via Getty Images)
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