Mars, the fourth planet from the sun, is often referred to as the "Red Planet" due to its rusty hue from the iron oxide-rich soil dust. The planet is dotted with frosty dunes, largely located in the high latitudes of the northern plains. Mars" atmosphere is composed of nearly 96% carbon dioxide, which is why carbon ice forms on the surface. These dunes showcase the dynamic interaction between Mars" thin atmosphere, its surface, and seasonal temperature changes.
Frost-covered dunes on Mars
Today in History
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Friendship Day
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World Meteorological Day
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A courtyard scene from Spain
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Giants of the avian world
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Mardi Gras flower power
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Angkor, Cambodia
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Al-Khazneh in Petra, Jordan
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Swim city
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It s only Wednesday
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Oloupena Falls, island of Molokai, Hawaii
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Ruins of St. Dwynwens Church, Ynys Llanddwyn, Wales
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A step toward freedom
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Veterans Day
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Maloja, Switzerland
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Summer Olympics begin in Paris
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Joshua Tree National Park
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Road to Hana, Maui, Hawaii
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Everglades National Park turns 75
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A river on the tundra
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The roots of invention
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Taj Mahal, Agra, Uttar Pradesh, India
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Life goes on at the Beatles Ashram
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Northern coast of Colombia
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International Day for Biodiversity
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Happy Presidents Day
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Papagayo Beach, Lanzarote, Canary Islands, Spain
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Jazzed for Mardi Gras
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Look to the north sky tonight for the Perseids
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Who doesn’t love a ‘Puppy’?
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Sedona, Arizona
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