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         Space shuttle (front and back view): 
          reusable space vehicle used for travel between a space station and earth. 
          Rudder: part of the shuttle used for turning. 
          Cockpit window: part of the cockpit that lets the astronaut see 
          outside. 
          Main engines: engines that enable the shuttle to enter and leave 
          space. 
          Manoeuvring engine: part of the shuttle used for steering. 
          Tank: part of the shuttle containing stored fuel. 
          Wing: lift plane of the shuttle. 
          Solid rocket booster: solid-rocket booster. 
          Exterior tank: large tank attached to the orbiter. 
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