While Galactus’ awesome cosmic power is unquestionable, he isn’t completely invulnerable to attack, including from dramatically less powerful beings like the Avengers. In fact, one surprising Avenger can actually beat Galactus, and Marvel Comics proves it.
Galactus is a cosmic entity who consumes entire planets in order to satiate his endless hunger–a being who is more of a force of universal nature than a man, though he didn’t start out that way. Galactus was originally called Galan of Taa, more or less a regular humanoid who lived in the universe that existed before the Marvel Universe fans know today. During a multiversal renewal cycle, Galan’s entire universe was broken down to nothing until it once more exploded with life at the dawn of the new universe. While everyone in his original existence died, Galan was filled with a new kind of power and was transformed into the god-like being Galactus–though his continued existence came with the terrible price of keeping this new universe in check by endlessly devouring planets with the full might of the immeasurable Power Cosmic at his disposal to keep him from ever being stopped.
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In Cosmic Ghost Rider #2 by Donny Cates and Dylan Burnett, Cosmic Ghost Rider aka Frank Castle tracks down Galactus after he stole an infant Thanos from his crib in order to raise him as his own and keep Thanos from being a murderous tyrant. Ghost Rider wanted Galactus’ help since, in his original reality, they became friends after Cosmic Ghost Rider became his Herald. As Galactus refuses Castle’s request, Ghost Rider is attacked by Cable and a group of other superheroes from the future who traveled back in time to
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