About 140 million miles away from Earth, the most relatable planet in the solar system orbits the sun. Mars, popularly known as the Red Planet, is the fourth planet from the sun, after Mercury, Venus, and Earth. We know more about Mars than any other planet but our own. That knowledge has been gained over centuries and has grown exponentially in recent years with the successful landings on Mars of the Curiosity and Perseverance rovers in 2012 and 2021 respectively. Today we celebrate those and other accomplishments on Red Planet Day, which coincides with the launch of Mariner 4, the first probe sent to Mars, on this day in 1964.
Red Planet Day
Today in History
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Welcome to the pack
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A state-of-the-art lookout on the Rock of Gibraltar
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Did they forget to fly south?
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Looking back on 150 years of rail travel
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Happy Halloween!
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Into the woods
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Rainbow River, Rainbow Springs State Park, Florida
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Feel the spray in Monterey
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Swinging into International Jazz Day
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Flamenco dancers
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Under Parisian skies
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Great horned owl
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Space is for everyone
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Fujian Tulou, China
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Look to the north sky tonight for the Perseids
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Striated heron on a Victoria water lily, Pantanal, Brazil
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Nighttime view over the Gulf Coast
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A monastery in the mountain
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A wetland in Västmanland, Sweden
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Birds of a feather
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Arromanches-les-Bains for the 81st anniversary of D-Day
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National Find a Rainbow Day
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A young jaguar on a riverbank, Pantanal, Brazil
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Two rocks and a heart spot
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The Great Blue Hole, Belize
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Why does this panda cub look so happy?
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A viewer with a view
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Tasmans Arch, Tasmania, Australia
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Fannette Island, Lake Tahoe
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Midnight sun
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