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I'm just wondering whether Saitama could live in space, just like Superman or Goku, without needing oxygen to breathe?

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and why did you think of that? AFAIK, he's a normal human, just super powerful physically, but... a normal human nonetheless? – Aki Tanaka Jan 23 at 12:56
He had to hold his breath while in the moon. That means no. However he can travel through space without external help. He got shot to the moon and he got back without a rocket. His durability and endurance is enough for that. – Analyst1996 Apr 28 at 17:48
Goku can't breathe in space. I believe that was a unique trait of the Frezia race. – RFKomos Jul 18 at 12:07
He can because he's dumb OP that is the whole point of his character. Don't question him or he will punch you... – Kaz Rodgers Jul 18 at 17:16
up vote 22 down vote accepted

No, he can not breathe in space.

In the chapter 47 (35.2), Boros punches Saitama so hard that he is sent flying towards the moon. When he lands there, he does his best to hold his breath:


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The real question is "can he resists space radiation?" – Braiam Jan 24 at 0:56
I don't think short term exposure to outer space is dangerous for radiation first. Rather, insanely low temperature. – Hakase Jan 24 at 2:02
The pressure would kill a person anyway :p – Ikaros Jan 24 at 2:03
His resistance to punches kind of implies resistance to pressure changes. – Hakase Jan 24 at 2:11
Your blood wouldn't start boiling for a while. The fluid in your eyes and mouth on the other hand, will in fact suffer. – TUSF Jan 24 at 19:28

Based on the anime, Saitama first looks around calmly, realizes he's in space, then covers his nose. While this isn't solid evidence, the fact he just didn't even realize this is probable evidence of one of two things: either Saitama does not require any breath and had passively stopped breathing at all, or he is simply such a broken character that he ignores logic until he realizes it's even there in the first place. Either way the air should have escaped from his body within seconds, so based on a logical standpoint I can only assume that yes, Saitama can breathe in space.

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