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Season 2 · Episode 1

Space Brothers: A Big Brother Should Always...watch all episodes online

A Big Brother Should Always...

  • Season 2 · Episode 1
  • 24 min

Recap episode. Mutta recalls how he first got accepted for the JAXA training program.

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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.

Episodes

48 episodes · 2013

  1. Episode 1: A Big Brother Should Always...1Now playingA Big Brother Should Always...24 min · Apr 6, 2013Recap episode. Mutta recalls how he first got accepted for the JAXA training program.
  2. Episode 2: Stand on the Moon Together Alive2✓ WatchedStand on the Moon Together Alive24 min · Apr 13, 2013Recap episode. Hibito recalls the ordeal of his accident on the moon.
  3. Episode 3: Do I Have Good Luck?3✓ WatchedDo I Have Good Luck?24 min · Apr 20, 2013As Mutta and his teammates try to keep warm in the cold desert night, Mutta is reminded of recent events.
  4. Episode 4: Distant Goal4✓ WatchedDistant Goal24 min · Apr 27, 2013The astronaut candidates have reached the sixth, and final, day of survival training. But Mutta is down with a fever. Can Team E complete the training?
  5. Episode 5: Promise to Drink5✓ WatchedPromise to Drink24 min · May 4, 2013After completing survival training, the NASA astronaut candidates are tasked to participate in the upcoming Comeback Competition. Each team receives an advisory engineer, but Mutta's team is stuck with someone who won't help.
  6. Episode 6: An Engineer's Switch6✓ WatchedAn Engineer's Switch24 min · May 11, 2013As Azuma makes his way towards the moon, Mutta's team works on testing the rover, learning of what flaws they need to fix. The team consider following another team's example and going with a glider instead of a ground rover, but Pico points out that the wind would cause issues with that plan. Using his engineer insight on how to overcome their obstacles, Mutta suggests that they make the rover's tires out of sponge, so they can have larger tires that still fit inside the rocket whilst also reducing costs and providing shock absorption. Impressed by this idea, Pico decides to give the team advice on their parachute, encouraging them to think of the rover as a spaceship containing their comrades. With Mutta's ideas and Pico's advice, the team manage to put together a working rover complete with a functioning parachute. Later, as Mutta is invited by Pico for a drink, Vince takes him for a drive.
  7. Episode 7: Earnest Failure7✓ WatchedEarnest Failure24 min · May 18, 2013During their car ride, Vince mentions that he considers astronomers his enemy, due to their supposed snobbery towards manned spaceflight. When asked who his viewpoint, Mutta responds that he considers himself to be his worse enemy, with Sharon being the one who helped him see that. As Pico joins them at the bar, Mutta's remark about earnest failures reminds Pico and Vince about their childhood friend, Rick, who used to make rockets together. Back when they were fifteen, they were under pressure to give up on their dreams and settle with becoming coal miners due to the town they were raised in, but they reaffirmed their dreams after seeing Brian riding the ISS.
  8. Episode 8: Promise Sign8✓ WatchedPromise Sign24 min · May 25, 2013Pico and Vince were pushed by their fathers and teachers to apply for their local technical college, which angered Rick, who felt betrayed by the others for giving up their dreams. Before they could make up with each other, Rick died in a car accident on the day Pico and Vince attended a career day for the mines. Distraught and angered by Rick's death, Pico and Vince reaffirmed their resolve to pursue careers as astronauts, as life is too short for unexciting things. Back in the present, Azuma and his group arrive at the moon base, where he reunites with Hibito, who thanks him for helping to save his life, whilst Mutta, Kenji and Nitta watch it on TV. As the day of the Comeback Competition arrives, Pico informs Mutta and Kenji that a rainfall the previous night could potentially cause huge problems with the sponge tires, the worst case scenario given them only an hour to do something about it.
  9. Episode 9: Sea Diver and Space Diver9✓ WatchedSea Diver and Space Diver24 min · Jun 1, 2013With a limited amount of time before they launch, the team search for materials they can use to keep the sponge tires dry. Visiting the hotel's utility room, Mutta borrows some silicone sealant from the janitor, which he uses to waterproof the tires. With all their elements in place, along with Mutta's addition of a toy astronaut to represent the purpose of the experiment, the rover manages to make it 200m from the target goal before its battery dies, ranking them fifth overall and second amongst the AsCans. After the contest, they are approach by the winning team, whose director turns out to be none other than Naoto, who is working hard to develop a Japanese manned rocket.
  10. Episode 10: Those Who Wait for Hibito10✓ WatchedThose Who Wait for Hibito24 min · Jun 8, 2013As Hibito, along with Damian and Linda, begin their journey back to Earth, Mutta's group give Pico their rover as a memento of their time together. The day soon comes for the space module Orion to enter the atmosphere and a collective sigh of relief is heard as the parachutes are successfully deployed and the three astronauts land safely. Arriving in Houston, Hibito greets Mutta, giving him a piece of rock from the moon as a souvenir.
  11. Episode 11: Those Who Dream Far11✓ WatchedThose Who Dream Far24 min · Jun 15, 2013Whilst Hibito, Damian and Linda begin their rehabiliation, Amanti tells Mutta about a premonition she had about him, saying someone close to him will soon be stricken by a serious illness. Meanwhile, Sharon travels to a conference in America to propose the construction of a lunar telescope. Back in Houston, Mutta and the other AsCans are at Ellington Airport where they much learn how to pilot a T-38 jet as part of their astronaut training. Mutta is called up by Sharon who, after talking with Serika who is a big fan of hers, says she will be in Houston in two days, whilst Mutta starts to worry if she is the one Amanti mentioned.
  12. Episode 12: Young Excitement12✓ WatchedYoung Excitement24 min · Jun 22, 2013The AsCans begin their flight studies, in which they must learn three weeks worth of flight knowledge in three days. Meanwhile, Sharon speaks with Daniel Morrison, a university lecturer from Hawaii, who expresses his interest in her telescope proposal and offers his support. She eventually arrives in Houston where she meets up with Hibito, who senses some limpness in her hands. After Sharon falls over whilst trying to carry some drinks, her assistant and Hibito check her into a medical center, where the doctor claims she is only feeling fatigue. Later that night, Hibito and Sharon head to a party Mutta and the others are holding. When Serika notices Sharon's battered cellphone, she is reminded of when her father was first diagnosed with his illness and discovers Sharon is showing the same symptons he had.
  13. Episode 13: Piece of Cake13✓ WatchedPiece of Cake24 min · Jun 29, 2013Mutta, Hibito and Serika accompany Sharon to a neurologist, where Serika fears she may be suffering from amyotrophic lateral sclerosis just like her father. As Sharon is admitted for more tests, Serika explains the details of ALS to Mutta, who is shocked to learn that it may one day kill her. As such, Mutta finds himself unable to concentrate on his written test and scores terribly. Following her examinations, in which she is properly diagnosed with ALS, Sharon is visited by Serika, who tells her about her father and motivates her to work hard on her research despite her illness. As Sharon heads back towards Japan, Mutta reaffirms his promise to help build her telescope. Later, Serika tells Mutta about a similar promise she made to get up to the ISS and develop a treatment for ALS.
  14. Episode 14: Wheelchair Pilot14✓ WatchedWheelchair Pilot24 min · Jul 13, 2013After Mutta takes a make-up exam, this time managing to concentrate properly, he once again meets Deneil Young. With the top scoring AsCans being assigned to the best flight instructors for their T-38 training, Mutta, as the only one who had to take a make-up, is assigned to Deneil.
  15. Episode 15: Two Notebooks15✓ WatchedTwo Notebooks24 min · Jul 20, 2013Deneil takes Mutta on his first T-38 flight where, unlike the other instructors, he flies at speeds of 6.5Gs. Mutta throws up on his first flight, though after hearing Hibito went through the same training, he decides to go on it again. He soon begins training to fly himself, tasked with relying on instruments instead of sight. Whilst intially having trouble, Mutta is soon encouraged by Deneil's advice and Sharon's hand written letter, encouraging him to train for what he can.
  16. Episode 16: Deneil-ized!16✓ WatchedDeneil-ized!24 min · Jul 27, 2013Hibito informs Mutta that he'll be returning to Japan for a week in order to be debriefed by JAXA and visit Sharon. Meanwhile, Mutta struggles with multitasking aspect of flying a T-38, not helped by Deniel's improvisations and a burger commercial that got stuck in his head. After giving him some advice on being a top pilot, Deneil later tells Mutta that he plans to retire once Mutta becomes an official astronaut. Meanwhile, Hibito and the other astronauts go drinking with Pico, telling him about his experiences with Deneil. As Mutta finally gets the hang of his training, Deneil tells him about how he salutes to pictures of pilots and would-be astronauts who died in flight accidents.
  17. Episode 17: Two Keyboards17✓ WatchedTwo Keyboards24 min · Aug 3, 2013Mutta's flight training is progressing well. Meanwhile, Hibito heads back to Japan, where he is greeted by cheering g crowds and parades. He also gets a chance to visit Sharon.
  18. Episode 18: Next to Hibito18✓ WatchedNext to Hibito24 min · Aug 10, 2013After Mutta completes flight training, he officially becomes an astronaut. Now he must wait to see if he will be assigned to a lunar mission.
  19. Episode 19: Determination to Give Up19✓ WatchedDetermination to Give Up24 min · Aug 17, 2013After completing training, Mutta is offered a spot on the backup crew for an upcoming ISS mission. This is a golden opportunity for Mutta to make it to space quickly. But he must consider what he truly wants to do.
  20. Episode 20: Rehearsal20✓ WatchedRehearsal24 min · Aug 31, 2013Mutta and Hibito are selected for a magazine cover. Mutta is excited, but he notices that Hibito is acting strangely.
  21. Episode 21: Hibito's Disorder21✓ WatchedHibito's Disorder24 min · Sep 7, 2013Hibito struggles with the panic disorder that's afflicted him since his ordeal on the moon. However, he requests that his condition be kept secret from Mutta, who may have found a way to improve the lunar rover.
  22. Episode 22: A Road on the Roadless Moon22✓ WatchedA Road on the Roadless Moon24 min · Sep 14, 2013Mutta comes up with an idea to prevent vehicular accidents on the moon. Will NASA accept his proposal?
  23. Episode 23: Magic Trick23✓ WatchedMagic Trick24 min · Sep 21, 2013Mutta's proposal to improve the lunar rover is received well. But he still hasn't convinced Chief Butler to let him train for lunar missions. Desperate for ideas, Mutta researches Chief Butler's history for clues.
  24. Episode 24: My Hands24✓ WatchedMy Hands24 min · Sep 28, 2013Mutta's proposal to add a windshield to the lunar rover is received well. However, Chief Butler is still reluctant to allow Mutta to train for lunar missions. Mutta decides he must try something more dramatic.
  25. Episode 25: Olga25✓ WatchedOlga24 min · Oct 5, 2013Mutta has convinced Chief Butler to allow him to start training for lunar missions. Meanwhile, Hibito is in Russia, trying to overcome his panic disorder.
  26. Episode 26: An Astronaut's Daughter26✓ WatchedAn Astronaut's Daughter24 min · Oct 12, 2013Hibito continues to struggle in rehab. Russian astronaut Ivan Tolstoy shows Hibito videos of his daughter as a child, learning ballet. Will the videos give Hibito his answer?
  27. Episode 27: Out of Time27✓ WatchedOut of Time24 min · Oct 19, 2013Inspired by Olga's performance, Hibito continues his rehabilitation. Ivan comes up with a unique approach that may start Hibito down the path to recovery.
  28. Episode 28: Olga, Hibito and Gagarin28✓ WatchedOlga, Hibito and Gagarin24 min · Oct 26, 2013NASA and JAXA have decided to bring Hibito back to Houston, placing him in a supporting role. Hibito has no choice but to pack up and make his farewells.
  29. Episode 29: Secret29✓ WatchedSecret24 min · Nov 2, 2013Hibito has returned to Houston from Russia. At the same time, Mutta begins his journey to the moon with NEEMO training.
  30. Episode 30: Worst Enemy30✓ WatchedWorst Enemy24 min · Nov 9, 2013Mutta's idea for improving the lunar rover has earned him the right to participate in NEEMO training. He has taken one step toward the moon.
  31. Episode 31: Space Family31✓ WatchedSpace Family24 min · Nov 16, 2013Mutta is now underwater participating in NEEMO training. He's happy to be assigned to the same team as Kenji, but it turns out that he shouldn't be celebrating.
  32. Episode 32: Kenji and I32✓ WatchedKenji and I24 min · Nov 23, 2013Only one of each team's two Ants will be chosen to go to the moon. Since the beginning of his journey, Mutta has worked with Kenji, so he isn't sure what to do.
  33. Episode 33: Supandaman33✓ WatchedSupandaman24 min · Nov 30, 2013Mutta and Kenji are forced to compete for the chance to go to the moon. Initially unsure as to what to do, Mutta benefits from Andy's advice, which helps him settle down and devise a new plan.
  34. Episode 34: On the Moon's Surface34✓ WatchedOn the Moon's Surface24 min · Dec 7, 2013Mutta and Kenji have overcome their initial shock after hearing that only one of them will be chosen to go to the moon. Now that they're working together again, everything seems to be going right with their construction of the Moonbase.
  35. Episode 35: For Tomorrow35✓ WatchedFor Tomorrow24 min · Dec 14, 2013Mutta has completed NEEMO training. His final idea impressed many people in NASA. Meanwhile, back in Houston, Hibito continues his rehabilitation.
  36. Episode 36: To the Place Where I Belong36✓ WatchedTo the Place Where I Belong24 min · Dec 21, 2013Mutta has completed his NEEMO training and now waits to learn if he will be heading to the moon. Back in Houston, Hibito also completes his rehabilitation training. All that remains is to demonstrate to NASA that he has made a full recovery.
  37. Episode 37: Pretty Dog37✓ WatchedPretty Dog24 min · Jan 4, 2014Hibito is worried about the upcoming test that will decide if he will be allowed to return to space. Uncertain, he turns to an unexpected person for advice.
  38. Episode 38: Last Words38✓ WatchedLast Words24 min · Jan 11, 2014Mutta has been chosen to go to the moon. First, he will serve as Vince's backup. Now, Kenji and Nitta must learn what the future has in store for them.
  39. Episode 39: A Small Note and a Big Lucky Charm39✓ WatchedA Small Note and a Big Lucky Charm24 min · Jan 18, 2014Hibito begins the test that will determine if he can return to active duty. However, Chief Butler has planned a surprise for Hibito.
  40. Episode 40: How to Help Hibito40✓ WatchedHow to Help Hibito24 min · Jan 25, 2014Hibito takes the test to determine if he will be allowed to return to active duty. While Chief Butler issues a green card for a false malfunction, to see how Hibito reacts under pressure, another malfunction also occurs that Butler doesn't expect.
  41. Episode 41: Lonely People41✓ WatchedLonely People24 min · Feb 1, 2014Hibito has passed his test to return to active duty. With that over, Mutta can focus on starting his backup crew training for a lunar mission.
  42. Episode 42: In the Corner of My Heart42✓ WatchedIn the Corner of My Heart24 min · Feb 8, 2014As Sharon makes a new proposal to NASA for the lunar telescope, Mutta continues his training in the desert. However, Chief Butler is still seeking a backup captain for the mission.
  43. Episode 43: Exciting Teamwork43✓ WatchedExciting Teamwork24 min · Feb 15, 2014Mutta has been assigned to the CES-62 backup crew, but his fellow members aren't keen to work together. Will the arrival of Eddie Jay, their leader, turn things around?
  44. Episode 44: Our History44✓ WatchedOur History24 min · Feb 22, 2014Eddie Jay's arrival has given the CES-62 sub crew a much-needed jolt. After a night jog brings the crew closer together, Eddie suggests that the crew members share their stories.
  45. Episode 45: Astronaut and Father45✓ WatchedAstronaut and Father24 min · Mar 1, 2014Mutta has returned from his training in the desert and gets some rest as Christmas approaches. Meanwhile, Kenji and Nitta finally learn about the mission they've been assigned to.
  46. Episode 46: Won't Go Away46✓ WatchedWon't Go Away24 min · Mar 8, 2014It's New Year's, and the Nanba family is together in Houston to celebrate. Mutta feels good, as he trains for the moon and talks to Serika, but Hibito doesn't seem to be in a celebratory mood.
  47. Episode 47: The Ultimate Astronaut47✓ WatchedThe Ultimate Astronaut24 min · Mar 15, 2014Troubled by Hibito's disappearance, Mutta's performance begins slipping. However, a conversation with Chief Butler reassures him.
  48. Episode 48: Life Changes, Promises Don't48✓ WatchedLife Changes, Promises Don't24 min · Mar 22, 2014Hibito's disappearance is distracting Mutta during training and he makes a critical mistake. What will Hibito do next, and will Mutta be able to get his act together before the actual launch?

About the series

Space Brothers · 2012–2014

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.

Space Brothers

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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