NASA’s Photo Shows Mars’ Grand Canyon in Spectacular Detail

Measuring the length of the entire United States, Mars’ Valles Marineris—Mariner Valley—is an enormous canyon that makes our Grand Canyon appear minuscule. Stretching across a good expanse of the Red Planet, Valles Marineris is captured in spectacular detail thanks to the work of the Viking orbiter. NASA’s high-resolution mosaic of the Valles Marineris hemisphere gives a magnificent look at this canyon system.

Located along Mars’ equator, Valles Marineris spans one-fifth of the entire circumference of the planet. With depths of up to 4 miles and widths reaching up to 120 miles, the 2,500-mile-long canyon system is one of the largest in the entire Solar System. To put things into perspective, the Grand Canyon is a fraction of the size, running 277 miles long, up to 18 miles wide, and with a depth of only up to a little over a mile.[…]

Source: NASA’s Photo Shows Mars’ Grand Canyon in Spectacular Detail

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