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Stickney Crater

Stickney Crater is the largest crater on Phobos, one of Mars's moons. Named after Chloe Angeline Stickney Hall, the wife of Phobos's discoverer, Asaph Hall, it's over 9 kilometers across. This makes Stickney nearly half the diameter of Phobos itself. The impact that created it likely came close to shattering the tiny moon, as seen in this enhanced-color image from the HiRISE camera.