Originally posted by Galan007 Galactus has never come close to destroying a universe,
without outside 'assistance'.
That's not really fair brother G,
you know it's not in Galactus' interest to destroy universes,
Eternity actaully needs each Galactus, and Galactus considers Eternity his father.
The whole point behind the Black Celestial arc was to show us what Galactus was capable of,
(it was a future-self of Galactus 616 after all)
without needing to present this capability through the normal under control 616 Galactus,
cause again,
it's simply not in his interest to do that, quite the contrary in fact,
as we know Galactus is part of the Cosmic Hierarchy,
and Galactus has always been there when it came to defending and preserving the Universe.
Unlike Unicron who was a rogue entity acting on his own behalf.
Galactus while not bound by entity or concept,
does follow protocol for the sake of Cosmic consonance,
one of those protocols is do not feed on more than one planet a month (basically speaking)
But when necessary,
Galactus has proven he can absorb and/or destroy far more than a Planet.
Who wins? No comment.
Just wanted to point that out about why Galactus doesn't go around killing universes.