User blog comment:Redkite/Season 2, Battle 6, The Avengers (AEMH) vs. Doomsday (DCAU)/@comment-6771148-20130422025435/@comment-4552610-20130422120646

Well, Doomsday was able to overpower Superman and DCAU Superman has roughly the same powers as his mainstream counterpart. Also, Superman can fly, too. The reason he couldn't take Doomsday into space it that Doomsday would just grab Superman and throw him down. The same would happen to Thor.