@smxlr8: why would goku need the sun to use he's ki?
@batman242: i never said anything about ssjg. but fine, when goku fought bills for the first time, he punched a hole thru king kai's whole planet, and got hit with an attack strong enough to put goku down. maybe that doenst matter, but also the more ki you have the more durable you are, frieza was getting stomped on by ssj goku and still survived a planet explosion and as far as i know, superman's strongest heat vision shown was when he blasted a bunch of doomsday clones that batman was able to kill. do you have any proof goku can not take a punch that can destroy/crack a planet? I DONT THINK SO
King Kai's planet is a very small one.... not even the size of a moon nor Pluto. You're right, it doesn't matter, It doesn't show how durable Goku is. Superman can definitely take a punch like that though. Superman also split an ocean with his heat vision. He doesn't use his heat vision to the fullest because he likes to hold back, but when he doesn't hold back, he can just insta-lobotomize or incinerate Goku with it... because like I said, Goku doesn't show any high end durability feats against such things. I don't think he'd be able to dodge it easily either since it comes so quickly.
You're speculating if Goku can take the heat vision or not. I have a few problems with your heat vision argument. It's not like heat vision is light speed anyways, running slower than light speeds, much slower as we know Superman can't run or move his limbs anywhere close to Wally's abilities, Wally was able to outrun the heat vision. Goku could easily dodge the heat vision especially if he uses instant transmission.
If you like to make speculations and comparison, here's a more direct approach of magnitude. Piccolo blew up a moon almost instantly with a weak blast at his weakest in the DBZ series. Superman got KOed when he flew into a moon and blew it up. Moon blew up in both instances. You can do the rest of the math here.