Sagot :
Answer:
1. The space shuttle has a robotic arm that is extremely useful. This robotic arm helps to move things in and out of the shuttle, it could also include astronauts working in space. The Mars rover is a robot, these robots operates around land.
2. Three NASA rovers are on Mars and the two of them are still functioning! In January 2006, Stardust was the first robot sent to a comet, she brought a piece of Earth. Comets have gone back in time, and robots have helped NASA's research. To this day, they are still essential to NASA and in the future, robots will be used to return humans to the moon or even travel to Mars and beyond.