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
More Desktop Wallpapers:
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Oud-West, Amsterdam, Netherlands
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Jazzed for Mardi Gras
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A grand event
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An improbable tribute for Towel Day
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Craig Goch Dam in the Elan Valley of Wales
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Composite of photographs from the Apollo 15 mission
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Cherry blossoms in Shanghai, China
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Jackie Robinson Day
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Reflections on the mighty Amazon
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The Canary Islands, Spain
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Autumn in the cypress swamp
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Field of Light at Sensorio by Bruce Munro
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An old celebration for a new season
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Balloons and camels are two ways to catch a ride here
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Lake Bled, Slovenia
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Protecting endangered giants
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Reflections on Memorial Day
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A courtyard scene from Spain
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‘You should see the one that got away!’
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Gone ‘lightseeing’ in Berlin
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National Park Week: Wind Cave National Park
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Maloja, Switzerland
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Have a ‘beary’ good Earth Day
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Reflections of the night sky
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Of balloons and lost pantaloons
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Invisible no longer
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Storseisundet Bridge, Norway
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Of moose and Maine
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Light show in the forest
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Love blossoms