Originally posted by Endless Mike
That was only a dub lineGoku's attack didn't detonate when it hit Vegeta, he escaped it (and there's no proof it could destroy a planet anyway).
Genki Dama has never destroyed a planet.
The closest anyone has come to surviving a planet destroying attack was when Frieza was on the surface of an exploding planet, or when Buu regenerated from the explosion of the earth that he caused himself. That's still only a fraction of the actual explosive power, though.
Anyway this is off topic.
....."sigh"