What is thanos i don t even know who you are?

Thanos is a fictional supervillain character appearing in Marvel Comics. He was created by writer-artist Jim Starlin and first appeared in Iron Man #55 in 1973. Thanos is a powerful Titanian mutant who possesses various superhuman abilities including strength, durability, agility, and intelligence. His ultimate goal is to obtain the six Infinity Stones, which when combined, grant him near-omnipotence. Thanos is widely popularized by his appearance in the Marvel Cinematic Universe, where he serves as the main antagonist in Avengers: Infinity War and Avengers: Endgame.