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Valles Marineris
[ val-uhs-mar-uh-nair-is ]
noun
, Astronomy.
- a canyon on Mars, 3,100 miles (5,000 km) in length, named after the Mariner spacecraft.
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Example Sentences
It also hasn’t been exposed in a half-dozen other locations—impact craters and massive trenches, like Valles Marineris, the Grand Canyon of Mars.
From Nautilus
Numbers alone are one thing, but breathtaking close-up images of Valles Marineris recently released by the University of Arizona put the stats into perspective.
From Popular-Science
It’s tiny details like these that will help us understand how Valles Marineris came to be, as well as the planet’s climate history as a whole.
From Popular-Science
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