Soviet Lunokhod moonrover, from 70-ies of 20th century. Credit: Petar Milošević

For the last 50 years or so we have been using wheeled robots and vehicles to explore other worlds from secret Soviet lunar rovers to the first lunar car to the latest Mars Rovers, we owe a lot to our extra-terrestrial wheeled helpers.

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In this video, Curious Droid looks at some of the ideas for Extra-Terrestrial vehicles that didn’t make it as well the most famous and successful but until recently unknown Soviet-designed models to compete with Apollo.