You can thank gravity for many things, from keeping your water in the glass to making sure your car stays on the road. But on Mars' moons, visitors wouldn't be able to take those perks for granted. The gravitational pull on Deimos is so weak that if you rode a bike off a ramp there, you might just fly out of the moon's gravity. Mars' other moon, Phobos, isn't much better.
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Key Facts In This Video
Mars has two moons: Phobos and Deimos. 00:01
The surface area of Mars' moon Deimos is close to that of Malta on Earth. 00:15
Mars' moon Deimos is slowly escaping it. 01:22
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Written by Curiosity Staff June 6, 2017
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