Animation of Mars Express's fly-by of Phobos. Mars Express benefits from its highly elliptical orbit, making it possible to image the far-side of Phobos (with respect to Mars) for the first time. NASA’s Mars Odyssey (MO) and Mars Reconnaissance Orbiter (MRO) are in a low orbit around Mars.‎

ESA/DLR/FU Berlin (G. Neukum)

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