They might look like spaceships from a retro sci-fi movie, but these strange shapes hovering above the mountains in Patagonia are of earthly origin. These are lenticular clouds, named after their lens-like shape. They form near hills and mountains where moist air is pushed up and over the peaks, cooling as it rises and condensing into water droplets. As wind blows over the mountains it can create a series of waves in the air, and these unusual clouds form in the crest of those waves.
World Meteorological Day
Today in History
More Desktop Wallpapers:
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St. Patricks Day
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Eye of the cave
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International Day of Peace
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Belize Barrier Reef
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Ski touring in Austria
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Road-trip worthy attraction in the heartland
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Two rocks and a heart spot
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Giving Tuesday
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Prasat Phanom Rung temple ruins, Thailand
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The Monastery of Roussanou, Greece
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World Bicycle Day
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Giving Tuesday
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Wooden path to Kennedy Lake, Vancouver Island, Canada
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Tigh Mor Trossachs on Loch Achray, Scotland
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Taughannock Falls State Park
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International Tiger Day
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Happy winter solstice!
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Its Halfway Day!
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50 years of Earth Day
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1934 Labor Day parade, Gastonia, North Carolina
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Big dreams require a big sleigh
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Illuminated Uluru
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Gulf Islands National Seashore, Florida
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By the light of the fireflies
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San Gimignano, Siena Tuscany, Italy
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Manhattan
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Paradise, found
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There was gold in them there hills…
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It s Census Day—make it count
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What kind of bird laid these eggs?
Bing Wallpaper Gallery

