As a domain expert in comic book lore and superhero narratives, I can provide an informed perspective on the character of Thanos from the Marvel Universe. Thanos is a powerful being, but he is not immortal in the traditional sense. He was born on Titan, a moon of Saturn, and is an Eternal, which means he possesses the potential for extremely long life and the ability to resist many forms of injury. However, his immortality is more about his resistance to aging and conventional diseases rather than being invulnerable to all forms of harm.

Thanos has been shown to be vulnerable to certain cosmic forces and powerful beings. For example, he has been defeated by cosmic entities like the Living Tribunal and has been susceptible to magical attacks. Additionally, he has been killed and resurrected multiple times throughout the comics, often due to his own machinations or the actions of others.

In summary, while Thanos is extremely long-lived and difficult to kill, he is not truly immortal. His status as an Eternal gives him a significant advantage in terms of longevity and durability, but it does not make him invincible.

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He also survived being subjected to an artificial singularity. Immortality: Thanos, like all Eternals, is immortal in the sense that he is immune to all known diseases and infections and is immune to the effects of aging. Thanos was formerly banned by Death itself from entering its realm, rendering him truly immortal.read more >>