ATHLETE (All-Terrain Hex-Limbed Extra-Terrestrial Explorer) is a six-legged robotic lunar rover under development by the Jet Propulsion Laboratory (JPL).
[1] The project aims to develop a multi-purpose system capable of docking or mating with special-purpose devices including refueling stations, excavation implements and/or special end effectors.
Plans are to develop the system's capability of travel over rougher terrain and to increase the speed of ATHLETE to 10 kilometres (6.2 mi) per hour, 100 times faster than the Spirit and Opportunity rovers.
[3] Planning for the future of the ATHLETE includes the ability to scale difficult obstacles by means of employing a launchable/releasable grappling hook and line which it will use to haul itself up even vertical slopes.
There are also plans to introduce provisions for voice and gesture commands from suited astronauts in proximity to the ATHLETE, the ability to self-deploy from their storage facilities and the capability for "autonomous footfall placement".