Stanford Team Developing Spiked Robots To Explore Phobos

The problem with low gravity is low friction. So in order to drive across a body with low gravity, you need to increase the effective coefficient of friction (or increase the mass, which makes it more expensive to get there).

In answer to your second question, you keep the speed down.

On the other hand if you need to jump across something, then just a little boost will do it...

Source: http://rss.slashdot.org/~r/Slashdot/slashdotScience/~3/pqAW-GYT-Js/story01.htm

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