MIC (Mars imaging camera) is a visual wavelength camera to be launched with the Planet-B space c raft. Since Planet-B takes a very elliptic retrograde orbit, MIC can take global images of Mars. It can monitor changes of global atomospheric conditions on Mars: e.g., dust storm growth, change of atomospheric opacity due to dust and thin hazy clouds ,change of cloud features, g rowth and retreat of polar caps, development and thickness of polar hood. In addtion, since the planned orbits will make close encounters of Planet-B with its satellites ,Phobos and Deimos several times during the mission lifetime ,and consequently ,MIC can observe the shapes and the surface of the two satellites in detail.