As part of plans to establish a lunar base, the space agency may send to the moon a spare test version of the rover — as well as a soccer ball.
NASA has a spare Mars rover that it hopes to send to the moon, officials at the space agency announced on Tuesday.
It already has a name: PROMISE, an acronym for Polar Rover for Observation, Mapping and In-Situ Exploration.
It was originally used as ... [857 chars]