* The comic universe is constantly changing: Superheroes are revived, replaced, and reimagined all the time. Death is often temporary, and even when permanent, new characters emerge to fill the gap.
* There are countless comic universes: Each publisher, and sometimes even each individual series, has its own continuity. What happens in one universe might not apply to another.
However, there have been many iconic superhero deaths in comics. Here are a few examples:
DC Comics:
* Superman: He has died multiple times, including in *The Death of Superman* storyline, where he was killed by Doomsday.
* Batman: While not technically dead, he's been replaced by several other characters (like Tim Drake, Jean-Paul Valley, and Dick Grayson) during his time in the grave.
* Green Lantern (Hal Jordan): He was consumed by the power of Parallax and became a villain. He eventually atoned for his actions and was resurrected.
* Wonder Woman: She was killed by the villain Maxwell Lord, but later resurrected.
* Flash (Barry Allen): He sacrificed himself to stop the Anti-Monitor in *Crisis on Infinite Earths*. He was later resurrected.
Marvel Comics:
* Captain America: He was seemingly killed by the Red Skull in *Captain America #454*. He later returned.
* Wolverine: He died during *Death of Wolverine*, but his body was resurrected to be used as a weapon by the villain Sabretooth.
* Spider-Man: He died after a battle with the Green Goblin in *The Amazing Spider-Man #121* and *The Amazing Spider-Man #122*. However, he was brought back to life soon after.
* The Hulk: He was killed in *Hulk #150* by the Juggernaut but was resurrected by his enemy, General Ross.
* Iron Man: He died in *Iron Man #500*, sacrificing himself to save the universe. However, he returned in later stories.
Other notable superhero deaths:
* The Sentry (Marvel): He lost his sanity and committed suicide.
* Jean Grey (Marvel): She died saving her teammates in *X-Men #137* but was resurrected.
* The Comedian (Watchmen): This anti-hero was brutally murdered in *Watchmen*.
It's important to note that many of these deaths were later retconned or reversed. This is part of the nature of comics - stories can be rewritten, characters can come back, and the universe can be reimagined.
If you're looking for a specific superhero death, it's best to search for that character's specific storylines and deaths online. There are many resources that list major comic book deaths.