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Space Brothers (2012) — watch all episodes online

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Space Brothers 2012–2014 · watch all episodes online

宇宙兄弟

  • 2012–2014
  • 2 seasons
  • 99 episodes
  • TV-14
  • Comedy
  • Sci-Fi

Episodes

51 episodes · 2012

  1. Episode 1: Little Brother Hibito and Big Brother Mutta1✓ WatchedLittle Brother Hibito and Big Brother Mutta24 min · Mar 31, 2012The year 2006. Two brothers, Nanba Mutta (age 12) and Hibito (age 9), happen to spot a UFO headed for the moon. The experience inspires them to make a certain promise.
  2. Episode 2: My Shining Star2✓ WatchedMy Shining Star24 min · Apr 7, 2012With his mother's assistance and Hibito's encouragement, Mutta has been accepted for the New Astronaut Selection Exam. However, unsure of his next step, he visits Sharon, who works at a nearby observatory. After receiving advice from Sharon, Mutta is finally able to make up his mind.
  3. Episode 3: The Man with the Advantage and the Running Female Doctor3✓ WatchedThe Man with the Advantage and the Running Female Doctor24 min · Apr 14, 2012After advancing to the second exam, Mutta realizes that the other applicants are much better prepared than he is. Desperate to prove himself, he stakes everything on the lung capacity test, as he has confidence in his trumpet-trained lungs. However, as the other applicants drop out, he finds himself in a heated battle with Itou Serika. Who will come out on top?
  4. Episode 4: Next to Hibito4✓ WatchedNext to Hibito24 min · Apr 21, 2012After a long week, only the final interview remains in the second JAXA exam. Mutta is drawing attention as Nanba Hibito's older brother, but he insists he won't spend his entire life as Nanba Hibito's big brother.
  5. Episode 5: Days of Missing5✓ WatchedDays of Missing24 min · Apr 28, 2012After completing the second JAXA exam, Hibito invites Mutta for a free trip to Houston, Texas, through NASA's family support program. Upon arrival, he finds himself chased by a pug named Apo, and is then reunited with Hibito. However, Hibito expresses disappointment.
  6. Episode 6: Et Cetera in My Head6✓ WatchedEt Cetera in My Head24 min · May 5, 2012Mutta has arrived in America, but he's off to a rocky start with Hibito. Meanwhile, his future as an astronaut is in jeopardy because the headbutt incident has been brought to JAXA's attention.
  7. Episode 7: Dear Hibito7✓ WatchedDear Hibito24 min · May 12, 2012After learning that his former boss has told JAXA about the headbutt incident, Mutta has given up hope on passing the exam. To cope, Mutta falls back on his childhood habit of multitasking like crazy when something bad happens.
  8. Episode 8: Smoky Heaven8✓ WatchedSmoky Heaven24 min · May 19, 2012When the robber known as the fire extinguisher man strikes the restaurant where Mutta is, he's in trouble. But once the dust settles, Mutta has become a national hero for capturing the criminal. However, it appears there's more to the story.
  9. Episode 9: Individual Resolve9✓ WatchedIndividual Resolve24 min · May 26, 2012After passing the second JAXA exam, Mutta returns to Japan for the third. He's happy about the exam result, but on the flight back, a nightmare leaves him rattled. This is due to the letters from Hibito that he discovered before leaving.
  10. Episode 10: Running Bus10✓ WatchedRunning Bus24 min · Jun 2, 2012Mutta has learned that Kenji and Serika have strong reasons to become astronauts, while Mutta is simply trying to achieve a childhood dream. This causes Mutta to begin to question himself.
  11. Episode 11: Trapped Rivals11✓ WatchedTrapped Rivals24 min · Jun 9, 2012The third exam will take two weeks. Mutta and the other candidates are transported via sealed bus to a large, barren facility. Then they are led to an area that is known as the last room.
  12. Episode 12: My Name Is Itou Serika12✓ WatchedMy Name Is Itou Serika24 min · Jun 16, 2012The fifteen remaining candidates have been divided into three teams of five. Each team will spend two weeks inside a sealed box, while completing various tasks. The first task is to determine the time.
  13. Episode 13: 3-D Ant13✓ Watched3-D Ant24 min · Jun 23, 2012The sealed box teams are assigned more tasks. These include Running Math, five minutes of mental math while running, and a typing test. Next, they're asked to write a letter of protest to a journalist who is criticizing government funding for space exploration.
  14. Episode 14: Broken Glasses and the Sole of the Foot14✓ WatchedBroken Glasses and the Sole of the Foot24 min · Jun 30, 2012After five days in their sealed boxes, each team is exhibiting a pronounced personality. Mutta's Team A is rowdy, while Team C is quiet. However, Kenji's Team B appears to be a little gloomy.
  15. Episode 15: Let's Talk About Space15✓ WatchedLet's Talk About Space24 min · Jul 7, 2012The exam in the sealed box is halfway over. Mutta's Team A suffered an accident when Fukuda's glasses were broken. But Furuya, the one who broke them, requested a new pair. Meanwhile, Team B must deal with an alarm going off in the middle of the night.
  16. Episode 16: Alarm, but No Clock16✓ WatchedAlarm, but No Clock24 min · Jul 14, 2012The third exam is halfway over. Mutta works on a completely white puzzle as he ponders why Fukuda-san would break the only clock in the sealed box.
  17. Episode 17: The Culprit Is in the Room17✓ WatchedThe Culprit Is in the Room24 min · Jul 21, 2012The third exam inside the sealed boxes has been underway for ten days. Each team has been experiencing unexpected problems, such as broken clocks and mysterious alarms that ring in the middle of the night. However, Mutta soon realizes who is actually responsible.
  18. Episode 18: Roo-ra! Kenji!18✓ WatchedRoo-ra! Kenji!24 min · Jul 28, 2012The candidates have only a few days left in the sealed boxes. JAXA has been using green cards to create trouble, gauging each member's ability to respond to stress and trouble.
  19. Episode 19: The Day Before Goodbye19✓ WatchedThe Day Before Goodbye24 min · Aug 4, 2012The teams have two days left in the sealed boxes. Mission Control has deliberately not given certain members of Kenji's Team B any green cards, leading to paranoia. Meanwhile, in Team A, Mutta announces that he has good news, bad news, and dicey news.
  20. Episode 20: The Worst Possible Punishment20✓ WatchedThe Worst Possible Punishment24 min · Aug 11, 2012It's their final day in the sealed box. Mutta has enjoyed his two weeks with the team, and he wishes to avert ruining their bond, as they make their final decision.
  21. Episode 21: A Long-Awaited Glimpse of the Sky21✓ WatchedA Long-Awaited Glimpse of the Sky24 min · Aug 18, 2012With the third exam finally over, Furuya takes the opportunity to visit the man who made his dream possible.
  22. Episode 22: Working on the Dream22✓ WatchedWorking on the Dream24 min · Sep 1, 2012The third astronaut selection exam has finally ended. Team A used rock-paper-scissors to select two members. Whose dreams are still alive?
  23. Episode 23: Father, Son, and Mutta Claus23✓ WatchedFather, Son, and Mutta Claus24 min · Sep 8, 2012Mutta has been picked to go to Houston for the final astronaut selection exam. But because his selection means that Kenji wasn't chosen, he has mixed feelings.
  24. Episode 24: The Worst Possible Interviewer24✓ WatchedThe Worst Possible Interviewer24 min · Sep 15, 2012The final exam is set to take place in two months. Mutta heads to Houston, ahead of the other candidates to look after Apo and tour the Johnson Space Center. Meanwhile, Hibito is training hard for his lunar mission.
  25. Episode 25: Sonic Little Brother Training Big Brother25✓ WatchedSonic Little Brother Training Big Brother24 min · Sep 22, 2012With the final astronaut selection exam coming up, Mutta heads to Houston. However, Jennifer has some ominous news.
  26. Episode 26: Painful Interview26✓ WatchedPainful Interview24 min · Sep 29, 2012Seven days remain before Hibito takes off on a journey to become the first Japanese person to walk on the moon. Meanwhile, Mutta prepares for the final astronaut selection exam at Johnson Space Center.
  27. Episode 27: One Question27✓ WatchedOne Question24 min · Oct 6, 2012The final NASA interview was a decoy to trick the candidates into relaxing, so the astronauts could evaluate them. However, the candidates have yet to realize this.
  28. Episode 28: Miracle of Doha28✓ WatchedMiracle of Doha24 min · Oct 13, 2012With four days before the launch, Mutta and his family arrive at Kennedy Space Center for one last meal with Hibito before he heads into space. Mutta uses this opportunity to hand Hibito a very special DVD-R.
  29. Episode 29: Night Before Launch29✓ WatchedNight Before Launch24 min · Oct 20, 2012Two days are left before launch. First, the lunar lander Artemis goes into space on Mars V. Afterwards, Hibito and the rest of the crew will head into space on Mars I.
  30. Episode 30: Dog, Old Man, and Alexander30✓ WatchedDog, Old Man, and Alexander24 min · Oct 27, 2012It's finally the day of the launch, but the weather doesn't look good. On top of that, Apo's run off, so Mutta has to go find him. While searching for Apo, Mutta comes across a suspicious old man.
  31. Episode 31: Rocket Road31✓ WatchedRocket Road24 min · Nov 3, 2012Mutta, Apo, and the strange old man watch as Hibito launches off into space. Afterwards, Mutta reminisces about the road taken by Hibito to reach this point.
  32. Episode 32: A Private Place32✓ WatchedA Private Place24 min · Nov 10, 2012Hibito has made it safely into space, and he's on his way to the moon. Meanwhile, Mutta runs into Azuma and his family, and he decides to approach them.
  33. Episode 33: Moon Rabbit33✓ WatchedMoon Rabbit24 min · Nov 17, 2012Hibito and the CES-51 crew finally land on the moon. However, Mutta is worried that Hibito will embarrass their country when he takes his first step.
  34. Episode 34: Pug and Hug on a Moonlit Night34✓ WatchedPug and Hug on a Moonlit Night24 min · Nov 24, 2012Hibito and the CES-51 crew have landed on the moon. Meanwhile, Mutta has returned to Japan to await his final exam results. He's especially concerned about using up his luck before the results are announced.
  35. Episode 35: From the Little Corner of a Big Facility35✓ WatchedFrom the Little Corner of a Big Facility24 min · Dec 1, 2012JAXA has begun announcing the results of the final astronaut selection exam. Makabe Kenji receives the first phone call. As Kenji waits to learn his fate, he reflects on his motivation for wanting to be an astronaut.
  36. Episode 36: Dancing Astronaut36✓ WatchedDancing Astronaut24 min · Dec 8, 2012While Mutta waits to hear if he will become an astronaut, Kenji has received good news. The next candidate to get a call is Serika.
  37. Episode 37: Two Men in the Park37✓ WatchedTwo Men in the Park24 min · Dec 15, 2012Two hours have passed since JAXA was supposed to notify the candidates, and Mutta hasn't received a call. When the phone finally rings, he's told to go to a nearby park. What will his fate be?
  38. Episode 38: Eleventh E-mail38✓ WatchedEleventh E-mail24 min · Dec 22, 2012After a long wait, Mutta learns that he passed the final exam. With no time to enjoy the moment, he is immediately whisked to the press conference, where the other new astronauts wait.
  39. Episode 39: Lunar Illusions39✓ WatchedLunar Illusions24 min · Jan 5, 2013Mutta has begun his life as an astronaut. First, he must undergo a month of JAXA training and orientation. Meanwhile, Hibito and Damian head out in a lunar rover to track down a missing probe.
  40. Episode 40: Heaven and Hell40✓ WatchedHeaven and Hell24 min · Jan 12, 2013Damian and Hibito leave Moonbase in search of a missing unmanned probe. However, an accident occurs, stranding them inside a ravine.
  41. Episode 41: Eighty Minutes to Live41✓ WatchedEighty Minutes to Live24 min · Jan 19, 2013After a buggy accident, Hibito and Damian are stuck at the bottom of a ravine. Damian's spacesuit is damaged, and he's losing body heat quickly. The odds are against them, but Hibito decides that the unmanned drone Gibson is their key out.
  42. Episode 42: Hibito's Choice42✓ WatchedHibito's Choice24 min · Jan 26, 2013Hibito manages to bring Damian back to the surface by using Gibson, but he's running out of time, as his oxygen supply dwindles. Will Freddy and Buddy find him in time?
  43. Episode 43: Brian43✓ WatchedBrian24 min · Feb 2, 2013Hibito is able to save Damian, but he's running out of oxygen. Freddy and Buddy are trying to catch him, but they won't arrive before his oxygen depletes. Is this the end?
  44. Episode 44: Three Astronauts44✓ WatchedThree Astronauts24 min · Feb 9, 2013Oxygen generation system Brian arrives just in time to save Hibito. Once he and Damian are rescued and back at Moonbase, he reflects on the astronauts who saved him.
  45. Episode 45: Five Blue Rangers45✓ WatchedFive Blue Rangers24 min · Feb 16, 2013Mutta and the other astronaut candidates have finally finished their Japanese training. Before they head to Houston, they receive a gift from Director Nasuda.
  46. Episode 46: Number One Restless Guy46✓ WatchedNumber One Restless Guy24 min · Feb 23, 2013The JAXA astronaut candidates head to Houston, to begin training at NASA. However, Murakami-san appears to have a surprise in store for Mutta.
  47. Episode 47: The First Promise47✓ WatchedThe First Promise24 min · Mar 2, 2013Mutta and the other astronaut candidates have arrived in Houston to begin training at NASA. First up is a social event to meet the other astronaut candidates from around the world.
  48. Episode 48: Always Have a Pedometer in Your Heart48✓ WatchedAlways Have a Pedometer in Your Heart24 min · Mar 9, 2013The first astronaut candidate task is undergoing a survival training course consisting of a six-day trek through the desert. Meanwhile, Mutta is still worried about Amanti's reaction after she read his fortune.
  49. Episode 49: Nitta the Leader49✓ WatchedNitta the Leader24 min · Mar 16, 2013The astronaut candidates continue their survival training in the desert. Team E has fallen behind the others, but after Nitta takes the lead, they try to pick up the pace.
  50. Episode 50: Nitta and Mutta50✓ WatchedNitta and Mutta24 min · Mar 23, 2013As the survival training draws to a close, Nitta suddenly tells the team he needs to backtrack due to losing his cell phone, but Mutta stops him. However, Mutta appears to have an idea in mind.
  51. Episode 51: Living Stone51✓ WatchedLiving Stone24 min · Mar 30, 2013Mutta and Nitta backtrack through the desert, looking for Nitta's cell phone. But Nitta cannot find it in time to answer his little brother's call. Has he lost another chance to reach him?

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Watch Space Brothers online free on this page: the official trailer in HD, the player and a page for every episode, with no sign-up and no subscription. Space Brothers (2012–2014, animation, drama, sci-fi & fantasy) has 2 seasons and 99 episodes; below you'll find the plot and the voice cast. It is part of our collections: Sci-Fi & Cyberpunk Anime. Episodes can't be downloaded here and there are no torrents — the page is for watching online only.

About the series

When they were young, the brothers Mutta and Hibito promised each other they would become astronauts. Now, in 2025, Hibito has followed his dream to become the first Japanese on the moon, but Mutta has just been fired from his job. His brother reminds him of their childhood promise, and Mutta decides once again to aim for space.

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Space Brothers: questions & answers

Where can I watch Space Brothers online for free?

Right here: this page has the official Space Brothers trailer in HD and the player, free and without sign-up.

Can I download Space Brothers for free?

No. Space Brothers can't be downloaded from this site and there are no torrent links — the page is for watching online: the trailer and the player.

What is Space Brothers about?

When they were young, the brothers Mutta and Hibito promised each other they would become astronauts. Now, in 2025, Hibito has followed his dream to become the first Japanese on the moon, but Mutta has just been fired from his job.

Who created Space Brothers?

Space Brothers was created by Ayumu Watanabe. Voice cast: Hiroaki Hirata, Kenn, Miyuki Sawashiro, Yuko Sanpei, Mayumi Tanaka.

Is Space Brothers dubbed or subbed?

That depends on the video: when the player has Space Brothers, the audio tracks and subtitles it carries are listed right above it. The original Japanese track is the usual default.

How many seasons and episodes does Space Brothers have?

Space Brothers has 2 seasons and 99 episodes.

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