This is a kind of nerdy thing to point out, but the Galactus vs Silver Surfer battle spectrum artwork has an error. It depicts what look like bullet holes in Galactus' helmet, presumably from Silver Surfer's energy beams. But in the comics, Galactus' appearance is not actually real -- he is a being of pure energy that appears as a giant humanoid to certain observers. So his helmet couldn't actually be damaged in a battle:
https://comicvine.gamespot.com/a/upl...physically.jpg