Quote Originally Posted by Buffalobiian View Post
Depends on his sensu-beans and spirit bomb gathering.

Planets without a sun are pretty damn cold. I'm not sure Goku would be able to fight or function in a place like that.
I think Superman would laser vision the bag of sensu beans as soon as he realized what they were for. And no way does he let Goku get enough time to gather energy for a spirit bomb.

Quote Originally Posted by Carnage View Post
Youre forgetting the afterlife/underworld possibility. Goku can easily teleport to an area with no sun. And if Goku isn't willing to fight a defenseless Superman, then I doubt Superman wouldn't at least allow Goku a training arc.
Goku would have to flee or die before he could get that training arc. Superman doesn't share Goku's weakness for wanting a fair fight or a true test of ability. He'd just want to save the world from a potential alien threat.