How did Bruce Banner (when he is not the Hulk) survive on a planet like Sakaar or on Asgard?

Are these planets habitable for humans?

  • 3
    Guardians of the Galaxy established that most planets that the characters visit are completely compatible with humans (even things like gravity). Jan 27, 2018 at 11:31
  • @Maslin see the answer of Paulie_D he had explain it very well with image that depicted scene where you can see Banner having conversation with Thor on planet Sakaar. Mar 6, 2018 at 5:13
  • @GhotiandChips - "even things like gravity". Gravity would be the most likely thing to be believable. You should be saying "even things like atmosphere". Mar 13, 2018 at 22:07
  • @WakeDemons3 Do you understand that what I was saying was shorthand for; every single extraterrestrial planet featured in the MCU so far (Asgard, Sakaar, Xandar, Maveth, Muspelheim, Morag, etc.) all feature the same gravitational pull as Earth. A movie like Avatar (2009) features Pandora with a weaker pull. You say "should be saying things like atmosphere", but that's perfectly obviously implied in my comment already, when I say "completely compatible with humans" as a response to the question "Are these planets habitable for humans". Mar 13, 2018 at 23:33
  • The reason I brought up gravity as an aside is because that's a less obviously implied part of "completely compatible with humans", and yet potentially just as peculiar from a realism perspective when thought about. Mar 13, 2018 at 23:35

1 Answer 1


Are these planets habitable for humans?


It's been established that many planets in the MCU will support Earth-born humans

Asgard was visited by Jane Foster...and she later joined Thor on Svartalfheim.

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Peter Quill / Star-Lord visits a number of planets with no trouble in Guardians of the Galaxy including Xandar

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Also recall that the Hulk is just Banner in giant green form (essentially)...he still has to breathe (at least as far as we know in the MCU). He might be tougher, stronger and more resistant than Banner but, basically, he's still a human albeit an enhanced one.

  • 3
    It's not true that Hulk "still has to breathe". Moreover, there is no reason to assume Hulk is human, in fact the comics would lean toward the opposite, considering they refer to Banner as "the human form" (does it make sense for a human to "revert back to human form"?). I think that end-note section in your answer is not necessary Jan 27, 2018 at 14:16
  • Looks like that person on the left requires assistance breathing in a human-suited atmosphere, though. Or maybe breathing masks are fashionable on Xandar.
    – JAB
    May 11, 2018 at 18:43

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