10 Characters Who Have Defeated Galactus
4. Impossible Man
Everyone has had some funky food at one point or another, so with all the weird planets inhabiting the Marvel Universe, it wouldn't be surprising to learn Galactus had one what would be the equivalent of eating some bad sushi.
The planet Poppup is one that definitely should have been labeled 'do not eat', or in the least have the nutritional facts attached to the side of the box. It is really irresponsible considering what's going down on the planet Poppup. The natives of the planet exist as a shared consciousness and have the ability to take on any form they please.
Impossible Man, an alien from Poppup, took the form of Invisible Girl and tricked the World Eater into shoving the single-minded world into his belly. The shared consciousness lived on in Impossible Man. The side effects of digesting this particular world caused something worse than a bit of heartburn.
It turns out impossible material is really bad for your tummy, so much so that it can cause cosmic beings to literally pop. This epic case of indigestion thanks to the Impossible Man's trickery was the cause of Galactus' ultimate demise.