This image of Phobos is amazing too:
"Stickney Crater, the largest crater on the martian moon Phobos, is named for
Chloe Angeline Stickney Hall, mathematician and wife of astronomer Asaph Hall. Asaph Hall discovered both the
Red Planet's moons in 1877. Over 9 kilometers across, Stickney is nearly half the
diameter of Phobos itself.."
http://antwrp.gsfc.nasa.gov/apod/ima...B_Stickney.jpg