That includes the 9-kilometer-wide (5.6-mile-wide) Stickney crater, Phobos' largest landmark. Fornasier and her colleagues used the snapshots to analyze the intensity of sunlight Phobos reflected ...

Most of the boulders may have been ejected from the largest impact crater on Phobos, Stickney." The Stickney Crater is about 9.7 kilometers (6 miles) wide, taking up around half of the moon's ...