Nasa engineers are testing the next generation of equipment, designed for future human space exploration, in the deserts of Arizona.

The All-Terrain Hex-Limbed Extra-Terrestial Explorer, or Athlete, robot is designed to be used to unload, transport, and handle cargo on the moon.

Julie Townsend from Nasa's Jet Propulsion Laboratory explained how the six-legged vehicle has been designed to adjust its height and various other tricks, to help it deal with challenging conditions.