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English: Second stage of Mars Ascent Vehicle to be designed by Lockheed Martin and with the Star-15 Engine from Northrop Grumman (indicated by Engine Nozzle). After MECO and coast phase it will burn for 27 seconds after which it again enters coast phase stage separation. MAV second stage will have RCS thrusters on its side for pitch and yaw control as the whole rocket is a solid rocket incapable of changing trajectory. it also hosts a radio beacon that will give controllers the information they need to get the ESA Earth Return Orbiter close enough to the Orbiting Sample to see it through reflective light and capture it for return to earth.