Not at his peak during the Silver Age..And this wash up Odin could've easily killed Galactus, but chose instead to headbutt him. A headbutt can potentially cause BOTH combatants serious injuries. It seems that the he writer went out of his way to protect Galactus. It's insane that any warrior with a spear in hand would choose to headbutt an opponent that has probably the biggest helmet in the entire MU, and Galactus helmet is not just for show- it's for protection.