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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Coming home to roost
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It’s oh so quiet
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National Go Birding Day
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The Guggenheim Bilbao turns 25
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Frog Month
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Observing a squirrelly day
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Nazar amulets, Goreme National Park, Cappadocia, Turkey
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Red fox
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Great horned owl near Lake Tohopekaliga, Florida
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Diwali
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Guiding ships to safety
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Womens History Month
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Welcome to the drainpipe of the Pacific
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Celebrating 200 years of statehood
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International Day of Friendship
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Flock online for the Great Backyard Bird Count
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Snow aglow in central Japan
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No, it s not a leaf. Happy Look-alike Day
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Windmills in Kinderdijk, the Netherlands
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Celebrating Mexico in a Cultural Capital
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Happy trails for the 21st century
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Vietnam’s new bridge deserves a big hand
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Beware the Ides of March
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Kinder Scout, Peak District National Park, England
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The eloquence of elephants
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National Park Service Founders Day
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On the rebirth of the Olympic Games
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Cecil Brewer Staircase, London
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Preveli Gorge
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In praise of bogs, swamps, and marshes