Well, it varies depending on the comic series. Sometimes, it's been a combined effort of multiple superheroes like the Fantastic Four and others. Each encounter has its own unique circumstances and outcomes.
Galactus' fate in the comics is complex. It's not straightforward to say who exactly killed him as it often involves multiple factors and characters coming into play. Different storylines present different scenarios.
Galactus was once a mortal named Galan in the pre - Big Bang universe of Taa. As the universe was about to end in a cataclysm, Galan entered a life - pod with some other survivors. But the pod entered a radiation - filled area near the Big Bang. Galan was transformed by this intense energy and became Galactus, a being with an insatiable hunger for planets to sustain his vast power.
One of the best Fantastic Four stories is 'This Man, This Monster'. It delves deep into the concept of identity and how appearance doesn't define a person. It shows the Thing's struggle with his new form and the contrast with a character who desires to be like him. It's a classic that really explores the emotional depth of the characters.
It's tough to put a precise figure on it. The Fantastic Four franchise has a rich history of comic book releases. There are countless regular issues, spin-offs, and limited series. So, there could be thousands when you consider everything.
Certain variant covers or signed copies of Fantastic Four comics can be valuable. Issues that introduce important characters or have significant plot developments often command higher prices in the collector's market.