Mars Rover

Mars is the only planet we know of, that is entirely inhabited by robots!

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To explore our Solar System, humans always send machines before people. To send people to Mars would be much more expensive than sending probes and robots. Mars has had many robot visitors in the past and currently has 2 active robot cars or rovers on it. They have tools for investigating the ground and for digging and drilling underneath the surface. They also have onboard mini laboratories for performing experiments.

This self-portrait of NASA's Curiosity Mars rover shows the vehicle at the "Big Sky" site. The scene combines dozens of images taken during the 1,126th Martian day, or sol, of Curiosity's work during Mars taken on Oct. 6, 2015. NASA