He's shown that he can survive the explosion itself, but breathing in space is.
28+ Can Goku Breathe In Space
Images. Same with any other character, one of the largest plot devices in the series was freeza. Goku fights beerus on the outer edges of the atmosphere, which could attribute to his lung capacity and stronger than normal physical body, but he still needs oxygen from earth.
Dbz Sight Com from sites.google.com
Goku could breath in space long enough to climb to the litteral moon on his power pole. Astronauts on the international space station breathe air almost identical to the stuff we breathe on earth. Freiza says, saiyans can't breathe in space.
King kai also notes that saiyans cannot breathe in space as he instructs the dragon team not to revive goku with the dragon balls, because he would appear in space, where he would have died from lack of oxygen.
Lyrics to son goku space: New at flash then get some help. Ahh yes, i just realised, then saitama will win, he can 1 punch goku with 100%, goku will just. It is this question that drives us.
