Moon Shadow on Mars
A view of Gusev crater on Mars, the landing site of NASA's now-defunct Spirit rover. The European Space Agency's Mars Express satellite captures this amazing view of the area from space, with the long ellipsoid shadow of Mars' moon Phobos racing across the bottom during a local eclipse.
Image: ESA / DLR / FU Berlin (G. Neukum) / Stuart Atkinson (used with permission) [high-resolution]
Caption: Wired Science
