Sands of Mars

"I found that artifact we located on the surface," Science Officer Mindi reported from the surface of Sol IV. "Judging from the directionality of its signals, it appears to have originated on Sol III," she said in surprise. "Seems to be some sort of ... nuclear powered, robotic rover. Can't say much for it's AI though," she snorted disgustedly. "This thing's dumber that a box of hydrospanners! After finding this here, I don't hold out much hope for finding intelligent life on Sol III.