The Arc Reactor was a fusion type power source featuring a palladium core, and was the initial power source of the first Iron Man suits, and was later modified to an advanced level by Tony Stark to power his more advanced suits, as it kept on improving.

Apr 16, 2023 · According to The Art of Avengers: Infinity War, Stark replaced the life-saving arc reactor with an "RT Unit" (which houses nanobots for Marvel Comics' Mark 50 Bleeding Edge armor), so the role of the arc reactor after Iron Man 3 was changed significantly.

Apr 30, 2008 · The Arc Reactor was a device initially designed by Howard Stark, and later adapted by his son, Tony. A massive arc reactor provided power for the sprawling complex of Stark Industries until its destruction, and later the Stark Tower.

In an alternate universe, Tony Stark used the Arc Reactor to power his Mark VII Iron Man Armor during the Battle of New York. However, he could not make it make back through the wormhole before it closed at the end of the battle.

Jan 11, 2022 · A major part of the plot revolves around Tony Stark grappling with the grim realization that palladium from the arc reactor in his chest, created during Iron Man to keep him alive, is now slowly killing him. As the story unfolds, Tony discovers a way to create a completely new element to replace it.

Mar 6, 2023 · Tony’s infamous Iron Man suit incorporates the Arc Reactor into its design, but it’s easy to miss exactly why he needs this device in the first place.

The Arc Reactor is the key to Iron Man, saving Tony Stark‘s life more than once and running not only his suits but also the Avengers Tower. It’s also essentially the MacGuffin of the first Iron Man film.

Aug 29, 2023 · Both Tony and the Iron Man suits are shown to have an arc reactor in the middle of their chest. While the Arc Reactor does charge up the Iron Man suits, it is also necessary to...

Jun 13, 2023 · Iron Man has an arc reactor in his chest to prevent shrapnel from reaching his heart and to power his suits. After Tony was severely wounded on the battlefield, the arc reactor was the only thing that kept him alive afterward, and it became an important part of Iron Man suits and Tony’s overall identity.

May 24, 2013 · The ARC reactor is definitely fusion. The industrial size one on the Stark campus is obviously modeled after a tokamak-type fusion reactor, and Vanko's schematics at the start of Iron Man 2 reinforce this. The one used in the base of Stark Tower in Avengers similarly matches a tokamak reactor.