How did ultimate Spider-Man died?

Ultimate Spider-Man, also known as Peter Parker from the Ultimate Marvel Universe, died in the storyline "The Night Gwen Stacy Died" during a battle with the Green Goblin. He sacrifices himself to save his loved ones, particularly Gwen Stacy, and is mortally wounded in the process. His death marks a significant moment in the Ultimate Universe, leading to the introduction of a new Spider-Man, Miles Morales.