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how much helium would you need to pick up one kilogram on mars? is there an equaison that can be used? thnx alot!


marked as duplicate by Kyle Kanos, Danu, user36790, Norbert Schuch, Gert Dec 18 '15 at 15:21

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  • $\begingroup$ The proposed duplicate shows how one would calculate the lift of a helium balloon on Earth, it should be simple enough to swap out $g_{Earth}$ for $g_{Mars}$ and determine the volume of the balloon necessary. $\endgroup$ – Kyle Kanos Dec 18 '15 at 12:50
  • $\begingroup$ @KyleKanos No, you need to know the atmospheric density on Mars as well. You need to have a large enough volume of helium at the atmospheric pressure on Mars to produce lift. The question is ill-formed in any case, since it depends on the pressure of the helium volume itself. To emphasize: no amount of helium will lift a gram on the moon, since there's no atmospheric pressure there at all. $\endgroup$ – Carl Witthoft Dec 18 '15 at 13:00
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    $\begingroup$ @CarlWitthoft: True, you do need to know $\rho_{Mars}$, fortunately NASA can help you with that. $\endgroup$ – Kyle Kanos Dec 18 '15 at 13:22

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