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
More Desktop Wallpapers:
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Mountain hare hopping into Lunar New Year
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Mapping courage in the Seventh Ward
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The Big Blue of the Sierra
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Into the woods
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Of moose and Maine
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Boxing Day—a shopper’s delight
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Santorini, Greece
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Cherry blossom season in Tokyo
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National Mushroom Month
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National Lighthouse Day
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Mardi Gras flower power
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Happy Astronomy Day!
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Happy birthday, Capitol Reef National Park
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The meeting point of the winds
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Salt of the earth
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Hello, harbinger of spring
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Waiānapanapa State Park, Maui, Hawaii
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Shining like Klondike gold
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Astoria-Megler Bridge, Oregon
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Did they forget to fly south?
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There once was a lighthouse from...
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Angkor, Cambodia
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Pretty, pretty…butterfly?
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Gem State views
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Gray days ahead in Monterey
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Unearthing a queen s lost tale
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Greece celebrates its independence
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In the Garden of Europe
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Oymyakon, Russia
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Balloon Ascension Day