Today is World Meteorology Day, so we’re high up in the atmosphere, above the clouds, for a satellite view of fallstreak holes. These gaps in the clouds are sometimes called hole-punch clouds. The holes form when supercooled water droplets suddenly freeze—often when a plane flies through the cloud—and then fall, leaving an opening in the formation. Scientists are still gaining new insights on how fallstreak holes form and behave.
What happened to these clouds?
Today in History
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Aura River in Turku, Finland
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Fannette Island, Lake Tahoe
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Love blossoms
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Red-leaf hunting in Japan
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A misty morning in Brazil
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Giving Tuesday
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A most sincere pumpkin patch
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A crane for good luck in today’s big game
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Busy building wetlands
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National Park Week begins
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World Oceans Day
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Helloooooo, Innsbruck
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Bernina Pass, Graubünden, Switzerland
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World Wildlife Day
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The Unfinished Obelisk near Aswan, Egypt
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Bridge of Hillsborough County
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Lake Pehoé, Torres del Paine National Park, Chile
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Happy trees = Clean air
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Horseshoe Bend, Arizona
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Room at the top?
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Dressed for winter fun
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Sutherland Falls in Fiordland National Park
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Penguin Awareness Day
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Winter in Old Nuuk
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International Day for Biosphere Reserves
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All is silent for Big Ben’s musical milestone
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Birthplace of Roman emperors
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Jane’s Carousel delights
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Happy Fathers Day!
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Squirrel Appreciation Day