Phobos

On July 23rd, the ESA's Mars Express took an amazing photograph of Mars' moon Phobos:



Here the spacecraft is only 100 km from the center of the moon. (Phobos is only about 25 km in diameter.)

The resolution of this photograph is about 3.7 m/pixel.

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The Russian Phobos-Grunt mission, to be launched next year, plans to land on Phobos and return a soil sample to Earth.

Mars is getting to be a very crowded place.