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.

After the fight, Thor was placed in the Hulk's room. He tried to convince the Hulk to escape with him, but he insisted on remaining on Sakaar. He and Thor argued with each other, but they quickly apologized to each other and made up. As Thor made his escape, though, the Hulk followed him, pleading with him to stay. 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.

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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