Robots on the Moon. Computer artwork of insect- like robots exploring on the Moon. They are seen next to a footprint left by one of the Apollo astronauts. The Apollo series of missions visited the Moon in 1969 and the early 1970s. No-one has visited the Moon since, though there are plans to return to the Moon in the early decades of the 21st century. These robots are part of plans to develop exploration robots that can access places that wheeled rovers cannot reach.