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A human-like robot holds a caution sign

Robonaut is a machine that can help humans work and explore in space or on other worlds. Image Credit: NASA

      a machine that is built to do a certain job again and again, or to do work that might be dangerous for humans

NASA uses robots to explore other planets.

Robots are used to paint new cars.

More Information:
http://spaceplace.nasa.gov/en/kids/robots/robot_puzzle.shtml   →