Water Found Deep Inside the Moon

Re:Water Found Deep Inside the Moon by passivepinetree on Thursday August 24, 2017 @07:07PM (#15094850)

Your assertion about getting to Mars with less propellant is super interesting. Can you provide a source for me?

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Re:Water Found Deep Inside the Moon by hoorayimhelping on Thursday August 24, 2017 @11:26PM (#15095891)

fewer than twenty five seconds of googling: https://en.wikipedia.org/wiki/Delta-v_budget

From LEO to the surface of the moon is 5.9 km/s

From LEO to the surface of Mars is 4.1 km/s

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Re:Water Found Deep Inside the Moon by dwringer on Friday August 25, 2017 @09:46AM (#15098344)

Unless I'm misreading something, both the text and graphic of that page seem to indicate it's 4.1km/s from low Mars orbit to the surface of Mars. I can't find anywhere saying it's 4.1 from LEO.

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Re:Water Found Deep Inside the Moon by Kubuxu on Friday August 25, 2017 @10:44AM (#15098795)

I get 2.5+0.7+0.6=3.8 to get into Mars Transfer from LEO. If we were to execute perfect aerobraking, the rest would be free. It for sure wouldn't be perfect so some fuel will be needed but not that much.

Source: https://en.wikipedia.org/wiki/Delta-v_budget#Delta-vs_betwee...

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