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by Symmetry
1165 days ago
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Looking at our handy solar system delta-v map[1] it takes 2.5 km/s of delta-v to get from the Moon's surface to an Earth intercept course (you can aerobrake to a landing) and 14.6 to get up from the Earth surface to the Moon's (no aerobraking, you have to use rockets to land). Also without an atmosphere you can use railguns and such to take off on the Moon, if you get more than a few km/s of boost on the Earth that way you'll burn up. [1]https://i.imgur.com/WGOy3qT.png |
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