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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Jasper Dark Sky Festival
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It’s surströmming time
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New Year’s Day in the land of the rising sun
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A story of wind and ice
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A leafy seadragon in the waters off Wool Bay, Australia
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A bridge comes full circle
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Go Fly a Kite Day
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Honoring those who served
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International Museum Day
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Don t go chasing waterfalls
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Village of Labro, Italy
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Bonaventure Cemetery, Savannah, Georgia
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Happy Easter!
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Big sky at Big Bend
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Hippo family in Chobe National Park, Botswana
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Are you older than this lake?
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A Bengal tiger in Ranthambore National Park, India
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Barcelona bids farewell to summer
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Marine Day in Japan
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It’s not a pinecone, it’s a pangolin
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Earth seen from the International Space Station
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A wild and scenic scene
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On the Route of the Waterfalls
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National Bison Day
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How green is my valley
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Nothing plain about it
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Into the woods
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National Museum of African American History and Culture
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Longer days mean warmer sand