LOL Galactus LOL stomps with a fart
Beyonder killed him because he controlled the multiverse. Galactus has destroyed galaxies as side effects of his battle with Tyrant and blew up 3 solar systems because he was mad. The UN can erase the whole universe and it's said that Galactus has the power to destroy and restore the Universe under his own cosmic power. A sun is nothing. Father gets obliterated.
About a million suns could plus father isnt in there universe so erasing father isnt going to do anything
The ultimate nullifier is not limited to one universe, nor is Galactus. Also if you really want to say Galactus's power wouldn't work outside his own universe which isn't true, what about the alternate universe where the alchemy and homunculus didn't exist? Father would lose his power too.
Alchemy would not work on another universe and it was proven in the 2003 when Ed could not use Alchemy in our Universe.
@taichokage: Even the Truth falls short to Galactus. Truth is nearly featless.
Truth was stated to be Omnipotent tho lol.