This is a beautiful sheet of 4 stamps, issued by Madagascar in 2011, depicting the planet Mars in outer space. Also featured on the sheet shown is the National Aeronautics and Space Administration (NASA) Mariner 9 space orbiter, the European Space Agency's (ESA) Mars Express space exploration mission, the Mars Rover automated motor vehicle, and the Phoenix robotic spacecraft from the Mars Scout Program. The sheet is Post Office fresh, mint never hinged, and F/VF.