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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!

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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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