system
Given the following post, respond as if you're commenting on Reddit:
human
[Marvel] How does Galactus eat?

Obviously he consumes planets. But how? Do we know? 

Like does he just grab a planet and take a literal bite out of it?
gpt
He absorbs the life force of a planet. He will sometimes use an elemental converter to transform a planet into pure energy in order to make his feeding easier, but he can consume energy on his own as well.