New images have captured a massive scar-like canyon on Mars in striking detail, and it's as big as the Grand Canyon.
Mars. It is one of our closest neighboring planets—and a planet that NASA hopes to send a manned space mission to in the 2030s. This beautiful and mysterious planet has long been the center of human space exploration, and now new images from the European Space Agency’s Mars Express Orbiter have given us a fresh look at a massive scar-like canyon on Mars.
It’s a graben, which is essentially a “ditch-like groove with steep walls on either side,” the ESA explains. The canyon was first spotted in the 1930s, but it wasn’t officially named until 1976. This particular graben is incomplete, too, with some parts broken up by the surface ground around it. The canyon is 375 miles long—when measured completely—and is longer than the Grand Canyon, which measures 277 miles from end to end.
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