From the Marvel Database: "Mjolnir (literally, "grinder" as in "grindstone", cf. 'meal' to "Mjl") is the enchanted hammer wielded by the Asgardian; Thor, the "Norse God of Thunder". The Uru hammer which grants him many of his powers and abilities. Forged by Eitri and the Dwarves of Nidavellir in the heart of a dying star. Mjolnir is enchanted so it can only be wielded by those who are deemed 'worthy'."