If humans could travel to Jupiter, what ways would we have to adapt to the high levels of gravity?

Would your blood flow to your legs and kill you from lack of oxygen in the brain? Would you get flattened from the gravity?

How would humans adapt to the gravity?

  • $\begingroup$ Where are they standing? Gravity varies with distance from the planet. There is no solid surface. There isn't enough information here to answer. $\endgroup$ – kingledion Nov 9 '18 at 19:50
  • $\begingroup$ You might want to check out What will be the effect if we stand on Jupiter? on Space Exploration. $\endgroup$ – a CVn Nov 9 '18 at 19:59
  • $\begingroup$ shall they just survive the gravity well or also the massive radiation Jupiter produces? $\endgroup$ – Trish Nov 9 '18 at 21:47
  • $\begingroup$ You've asked a number of distinct questions here. $\endgroup$ – rek Nov 10 '18 at 3:22

If humans could travel to Jupiter...

You mean inside the atmosphere?

Unfortunately, since Jupiter's atmosphere is made of the lightest gases, it is practically impossible to get a balloon to float there. The combination of gravity and pressure also means that we simply do not know how to make a plane that would be able to fly in there indefinetely. To fly there for even a few seconds would involve aerobraking a flyby, which is suicidal.

Let's suppose this is handwaved away, and that you'll use a pressurized habitat. Jupiter's surface gravity is 24.79m/s2, roughly 2.5x that of Earth's. Notice that Jupiter has no surface - that is just the gravity where atmospheric pressure equals that of Earth at sea level.

If you search sites like Wikipedia, you'll find that many sources cite untrained people can sustain forces of up to 4 to 6g before passing out, which is more than Jupiter's surface gravity. However, any sharp turn of your jovian vessel could knock you unconscious. Adaptations to prevent this would include stronger musculature and heart, and a brain more resistant to strokes.

I don't have much data about long term exposure to high gravity, but we did some speculation on this other question of mine:

Technological adaptations for colonization of a higher gravity world

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    $\begingroup$ I've once seen a documentary about pilots withstanding 10g when they do quick vertical drops but they have to contract incredibly hard their face muscles in order to force blood to the head and not pass out. $\endgroup$ – user56803 Nov 9 '18 at 19:55
  • $\begingroup$ @Eries That doesn't make sense to me. $\endgroup$ – a CVn Nov 9 '18 at 20:08
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    $\begingroup$ The differences between peak and sustained exposure seem relevant. That a pilot can survive 10g for the duration of a dive doesn't mean that a person could stand on a planet with 10g gravity for an hour. $\endgroup$ – Monica Cellio Nov 9 '18 at 21:37

Jupiter has 2.53G surface gravity not a problem in short term for trained and healthy individual. Point of note it is a gas giant you would need to live in orbit or some more advanced and sturdy station in it's atmospere. If you are in orbit around Jupiter you would face same problems as ISS. If you plan to build floating station, there is a lot to consider from size to where to put it. In general, it needs to be durable, corrosion resistant and mobile to evade less accomadating weather. But here you would meet gravity. Everything is x 2.5 times as heavy your blood included. You would want to be trained and with small stature, use mechanical aid for loads and transport, medication support, consider genetic modifications and mechanical ones.

  • $\begingroup$ If you are at "Jupiter's surface" you are not in Jupiter's orbit. $\endgroup$ – anon Nov 9 '18 at 20:02
  • $\begingroup$ @anon Well, technically, if you are "at Jupiter's surface", then you would be in Jupiter's orbit (approximately coorbiting with Jupiter), just not in orbit around Jupiter... $\endgroup$ – a CVn Nov 9 '18 at 20:07
  • $\begingroup$ @αCVn I suppose... but generally when we mention orbit in such contexts we are referencing paths capable of sustained opposition to gravity. This is different than flight. Orbiting within an atmosphere (especially a dense one) would be pretty spectacular. $\endgroup$ – anon Nov 9 '18 at 20:14
  • $\begingroup$ @anon Indeed it would. $\endgroup$ – a CVn Nov 9 '18 at 20:16
  • $\begingroup$ Well I meant to live in orbit around Jupiter and just go down if needed or place floating station in atmosphere. I would not try to make orbit around Jupiter inside atmosphere, just meaby if I want to go away flashy. $\endgroup$ – Artemijs Danilovs Nov 9 '18 at 20:20

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