NASA assembles Mars vehicle in cleanroom
Spacecraft engineers test Curiosity rover at Jet Propulsion Laboratory
This image, taken on 29 June, shows the rover with the mobility system – wheels and suspension – in place after installation on 28/29 June.
Spacecraft engineers and technicians are assembling and testing the rover in a large cleanroom at NASA's Jet Propulsion Laboratory, Pasadena, California, US.
Curiosity's six-wheel mobility system, with a rocker-bogie suspension system, resembles the systems on earlier, smaller Mars rovers, but for Curiosity, the wheels will also serve as landing gear when the mission's rocket-powered descent stage lowers the rover directly on to the surface of Mars in August 2012. Each wheel is half a metre (20in) in diameter.