Board Thread:General Discussion/@comment-27084453-20160211035108/@comment-32295718-20171018052619

Fox-Shock wrote: But ki is not magic. It won't be enough, and Vegeta is not a same level as Darkseid and Doomsday. Plus Vegeta's durability have limits, like planet explosion (cause by Frieza), and even can't survive the vacuum of space as Frieza mentioned during fight against Goku. Doomsday's feats of strength aren't actually that much impressive really, Vegeta could reproduce a lot of them.

And it can also be assumed that saiyans still need oxygen to survive (as Goku alsomst drowned on Namek), meaning that a planet blowing up could mean their end not because of a weak durability, but because they suffocate in space.