From sofiyan- Themystries
The Infinity Gauntlet. Basically, it’s a fancy golden glove that can hold all the Infinity Stones. When all the stones are united in the Gauntlet, the wearer wields unlimited power.
We first see the Infinity Gauntlet in the treasure room of Asgard in the first Thor. But then we see the glove again in a post-credits scene from Avengers: Age of Ultron. After Ultron fails to destroy the Avengers (and humanity), Thanos enters a place that is decidedly not the Asgardian treasure room, puts on the Infinity Gauntlet and says, “Fine, I’ll do it myself.”
Marvel cleared up this confusion about the two Infinity Gauntlets in Thor: Ragnarok when the villain Hela walks through the Asgardian treasury, looks at the Infinity Gauntlet, tosses it aside and declares it “fake.”
In the comics, Thanos falls in love with Death (or her physical embodiment) and collects the Infinity Stones to destroy universes and impress her. Marvel Studios hinted at this plotline way back in 2012 when a henchman told Thanos to fight the Avengers is to “court death.” Thanos smiles.
But Infinity War’s writers must have changed their mind about the villain’s motivations after they filmed that scene. In Infinity War, Thanos is concerned with the overpopulation of the universe. His solution is to “restore balance” by killing off half of all the living things. “He’s evil” is another acceptable answer.