Terry Fong of the Ames Research Center is using robotics to help us travel to Mars. Robots come in all sizes and for different purposes. Robotic arms on spacecraft are used to move very large objects in space. Spacecraft that visit other worlds are robots that can do work independently. People send them commands. The robots then follow those commands. This type of robot includes the rovers that explore the surface of Mars. NASA is researching new types of robots that will work with and assist humans.

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