User blog comment:The Reptile King/Ask Reps Daughter Questions/@comment-30061283-20161018214032/@comment-27036092-20161020200700

Oh yeah, nice idea LoS. Space doesn't contain oxygen, and has temperatures that vary wildly from very cold to very hot depending on your distance to a star. And he probably couldn't regenerate there, and even if he can, he wouldn't be able to come back easily (if at all).