ThorBruce

Thunder Science is the slash ship between Thor Odinson and Bruce Banner from the Marvel Cinematic Universe fandom.

The Avengers
Thor fought the Hulk on the helicarrier during Loki's attack. They later fought alongside each other in the Battle of New York.

Avengers: Age of Ultron
The two fought alongside each other in the fight to retrieve Loki's scepter and the Battle of Sokovia. After the battle, the Hulk stole a Quinjet and flew away from Sokovia, eventually flying through a wormhole and crash-landing on Sakaar, where he became the reigning champion of the Grandmaster's Contest of Champions.

Thor: Ragnarok
As Thor enters the Champion's arena, green smoke appears and people start to cheer. The Grandmaster then announces the champion who rushes into the arena and turns out to be Hulk. Thor yells in joy and yells to the Grandmaster that he knows Hulk from work. Thor then asks where Hulk has been, and that everyone thought he was dead. He starts telling him all that's happened, and that he never thought he'd say it, but he was very happy to see Banner. Thor calls to Banner again, but Hulk says that there's no Banner, just Hulk. Thor asks what he's doing as Hulk attacks. They continue to fight, as Thor tries to says that he doesn't want to hurt Hulk since they're friends. They continue to fight until Thor is able to knock Hulk against the wall and incapacitate him for a few moments. Thor then slowly walks over to him, and starts doing the "Sun's getting real low" mantra. They touch hands and Thor smiles, when Hulk grabs him and starts smashing him into the ground. Thor gets up and decides to go for the real fight. He still tries to get through to Bruce, and swears to get him out. Hulk is about to beat Thor, when Thor is suddenly able to control his lightning and blasts Hulk. They continue their fight and it seems that Thor is going to win, before the Grandmaster knocks Thor out and Hulk wins.

Thor wakes up in Hulk's room, before spying him in the hot tub. He asks if they're cool, but Hulk just gives a grunt. Thor asks how long Hulk has been stuck as Hulk, but Hulk just says that he's always like that. Thor asks how he got there, and Hulk says winning. Thor means on the planet, and Hulk says it was the quinjet. Thor asks where it is, and Hulk steps out of the hot tub, completely naked. He points to where it landed and Thor says that he's going to get them out of there. He says that Hulk will love Asgard, but Hulk says that he's staying. Thor says that his people need him and that they need to prevent Ragnarok. Hulk asks what that is, and Thor explains that it's the prophesized death of Asgard. He says that if Hulk gets him back to Asgard, then he'll help Hulk get back to Earth. Hulk says that Earth hates him, but Thor says Earth loves him since he's an Avenger. He's one of their friends. Hulk says that Thor is Bruce's friend, but Thor says that he prefers Hulk to Bruce. Hulk says that Thor can go, but he's staying. Thor says fine and starts to leave as Hulk says that he smashed him. Thor insists that he won the fight, but Hulk just says that he smashed him. Thor then attempts to leave the room, but is the quickly shocked and knocked out. Thor wakes up and looks to the quinjet as Hulk leaves to go train with Valkyrie.

As Thor tries to get the tracker off his neck, Hulk wakes up and calls him sad. Thor tells him to shut up, but Hulk comes and pushes him over, calling him sad again. Thor says that he isn't, he's pissed after loosing his dad and hammer. Hulk says that Thor is wining, but Thor says that Hulk is being a bad friend. Hulk says that Thor is the one being a bad friend. Thor says that they call Hulk the stupid Avenger, but Hulk just calls Thor the tiny Avenger. He throws a large shield at him, and Thor asks if he's crazy. Hulk says yes, and Thor tells him that Earth actually does hate him. Hulk doesn't say anything and just goes to sit on the bed. Thor walks over and apologizes for what he said, but that Hulk can't just throw shields around since he could have killed him. Hulk says that he's sorry and that he just gets angry all the time. Thor says that they're the same, a couple of hot heads. Hulk says that they're like fire and water, but Thor says that they're both fire. Hulk says that he's a big fire, while Thor is a tiny fire. Thor then asks Hulk to do something for him.

As Thor jumps out the window, Hulk calls for him to stay. Once Thor gets the quinjet working, Hulk tears off the back, calling for Thor to stay. Thor tells him to stop when he suddenly unlocks a message from Natasha. Hulk starts to freak out and turns back into Bruce. Thor comes over to him, and Bruce freaks out. Thor helps him calm down, and Bruce asks what happened to his hair. Thor explains that a creepy old man cut it off, and Bruce says that it looks really good. Bruce asks where they are, what happened to Nat and Sakovia. Thor breaks it to him that he's been stuck as Hulk for two years. Bruce wants to know what happened and finds the ships log. They see a video of Hulk ending up in space, and Bruce asks where they are. They're interupted by the Grandmaster's announcement, and Bruce asks who that is. Thor explains that he runs the place, that Bruce lived at his house, and that the two of them had a fight recently. Bruce asks if he won, and Thor lies saying that he did. Bruce doesn't think that sounds right, but Thor insists that it was true. Thor says that they need to go, and Bruce starts to freak out. Thor then tries to keep him calm as they get ready to move. After the Hulk transformed back into Bruce, he and Thor talked as they hid from the crowd in the streets. Thor tried to recruit him to fight against Hela, but Bruce refused, stating that if he turned into the Hulk again, he might never turn back. Thor eventually relented that Bruce didn't have to fight. As the two made their way to escape, they were separated in the crowd. A large alien nearly attacked Bruce, but Thor caught up to them, protectively putting himself between Bruce and the alien.

Thor and Bruce made their escape from Sakaar along with Valkyrie aboard the Commodore, a ship they had stolen from the Grandmaster. On Asgard, as Thor confronted Hela, Bruce transformed back into the Hulk to fight Fenris. The Hulk later joined Thor and the rest of Asgard aboard the Statesman, heading for Earth.

Avengers: Infinity War
Thor and the Hulk desperately fought against Thanos when he attacked the Statesman, but ultimately lost. Heimdall used the last of his strength to summon the Bifrost and transport the unconscious Hulk to Earth.

Thor and Bruce were reunited in Wakanda. When Thor made his entrance with the Bifrost along with Rocket Raccoon and Groot, Bruce opened the helmet of his Hulkbuster armor to laugh and yell to the Outriders that they were screwed now. They both later survived Thanos' snap to kill half the universe.

Avengers: Endgame
Bruce goes to new Asgard to retrieve Thor. While there Bruce says that when he was in a rough patch, it was Thor who helped him.

Later when Bruce is handling a newly made gauntlet, he seems to get hurt, Thor then desperately yelling at him to take it off, highly worried for his safety.

Thor Ragnarok

 * Thor decides that he's going to fight the Grandmasters champion.
 * Thor says that Hulk's nakedness is in his head now.
 * Thor tells Hulk to get Valkyrie to stay, which he does.
 * Thor says he's putting Hulk on his team, until Hulk says that he's not.
 * Hulk tosses Thor the ball.
 * Thor is offended that Bruce's name in the quinjet is "Strongest Avenger".

Quotes
"We know each other! He's a friend from work!"

- Thor, Thor: Ragnarok.

"Hey, big guy. The sun's getting real low. That's it. The sun's going down. I won't hurt you anymore. No one will."

- Thor attempting Natasha's lullaby, Thor: Ragnarok.

"What's the matter with you? You're embarrassing me! I told them we were friends!"

- Thor to Hulk

"Friend, stay!"

- Hulk trying to stop Thor from leaving Sakaar, Thor: Ragnarok.

Fanon
Shipping between the two started in the comics as well as in the first Avengers film, but was a more of a rare pair. The ship's popularity skyrocketed after Thor: Ragnarok, when they were shown interacting more. Deleted scenes from the film show Thor and Bruce touching each other often.

On AO3, Thunder Science is the fourth most written ship for Thor and the third most written for Bruce.

Fandom
FAN FICTION
 * Thor/Bruce (Avengers Movies) tag on FanFiction.net
 * Thor/Bruce (Marvel Comics) tag on FanFiction.net
 * Thor/Hulk (Avengers Comics) tag on FanFiction.net
 * Thor/Hulk (Avengers Cartoon) tag on FanFiction.net
 * Thor/Hulk (Avengers Cartoon) tag on FanFiction.net

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