The BEST episodes of Space Brothers

Every episode of Space Brothers ever, ranked from best to worst by thousands of votes from fans of the show. The best episodes of Space Brothers!

One night in 2006, when they were young, the two brothers Mutta (born 1993) and Hibito (born 1996) saw what appeared to be a UFO heading for the moon. They decided that night to both become astronauts and travel out into space. In 2025, Hibito has become an astronaut, and he's going to go to the moon. Mutta ended up following a more traditional career path with an auto development company. However, Mutta just ruined his career through a violent altercation with his boss. Now, not only has he lost his job, he appears to be blacklisted in the entire industry. Maybe this is a rare opportunity for Mutta to once again chase his childhood dream and become an astronaut like his little brother!

Last Updated: 7/14/2025Network: YTV (JP)Status: Ended
My Shining Star
star
8.42
19 votes

#1 - My Shining Star

Season 1 - Episode 2 - Aired 4/8/2012

With 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.

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My Hands
star
8.20
10 votes

#2 - My Hands

Season 2 - Episode 24 - Aired 9/28/2013

Mutta'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.

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Wheelchair Pilot
star
8.10
10 votes

#3 - Wheelchair Pilot

Season 2 - Episode 14 - Aired 7/13/2013

After 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.

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Piece of Cake
star
8.10
10 votes

#4 - Piece of Cake

Season 2 - Episode 13 - Aired 6/29/2013

Mutta, 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.

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Next to Hibito
star
8.09
11 votes

#5 - Next to Hibito

Season 1 - Episode 4 - Aired 4/22/2012

After 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.

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The Worst Possible Punishment
star
8.08
13 votes

#6 - The Worst Possible Punishment

Season 1 - Episode 20 - Aired 8/12/2012

As the last day of the exam arrives, the teams are told to do what they want for the rest of the day before deciding on thier selections, so Team A decides to clean up the place. As Team A struggles to decide on a method of choosing two astronauts, Mutta recalls the advise Sharon gave him and suggests they decide via a game of rock, paper, scissors so that everyone has a fair chance. As Yasushi accepts to this, he shows off his recordings of everyone's scores, revealing he's been in a last place. Mutta reveals that he got the idea to use rock, paper, scissors from Yasushi, and he agrees to go along with it.

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Living Stone
star
8.07
15 votes

#7 - Living Stone

Season 1 - Episode 51 - Aired 3/31/2013

As Mutta and Nitta head back to camp, discussing their relationships with their respective brothers, Kazuya looks up information about the astronauts, finding a video interview with Nitta. In the video, Nitta explains how feelings that you may not belong in this world can help drive you to go beyond it, stating some of the things Kazuya taught him when they were younger. After returning to camp, Nitta explains to the others about his brother whilst Mutta once again worries about Amanti's prediction. As a starstorm flies above the desert, Kazuya starts to venture outside his own little world.

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In the Corner of My Heart
star
8.00
10 votes

#8 - In the Corner of My Heart

Season 2 - Episode 42 - Aired 2/8/2014

As 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.

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The Man With the Advantage and the Running Female Doctor
star
8.00
12 votes

#9 - The Man With the Advantage and the Running Female Doctor

Season 1 - Episode 3 - Aired 4/15/2012

After 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?

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The Day Before Goodbye
star
8.00
14 votes

#10 - The Day Before Goodbye

Season 1 - Episode 19 - Aired 8/5/2012

As the exam approaches its final few days, Kenji gets to know his teammates better, which Hoshika musing that he didn't give Kenji a green card earlier in order to test his leadership skills. Meanwhile in Team A, as Mutta reveals they don't have any food left for tomorrow, he manages to gather some ingredients for making udon noodles. Remembering how he learnt it from Sharon along with Hibito, Mutta gets everyone to make udon together. Having not had anyone share his interest in space whilst he was in school, Mutta becomes pleasantly surprised when everyone else becomes surprised over how he knows Sharon, and they spend time talking about space together. The mood soon heavies when they are reminded they still need to choose two people to become astronauts.

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Eleventh E-mail
star
8.00
14 votes

#11 - Eleventh E-mail

Season 1 - Episode 38 - Aired 12/23/2012

Upon arriving at the conference building, Mutta meets with some of the unsuccessful applicants before heading to the main hall, where he is greeted by Serika, Kenji and Reiji, along with Team B's Ena Kitamura. As Hoshika gives Hibito the news of Mutta's success, Mutta manages to get through the conference without messing up. As the gang get together following the conference, Naoto joins them in celebration whilst Yasushi sends Mutta various texts congratulation him, explaining how he was always rooting for him.

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Sea Diver and Space Diver
star
8.00
8 votes

#12 - Sea Diver and Space Diver

Season 2 - Episode 9 - Aired 6/1/2013

With 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.

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Life Changes, Promises Don't
star
8.00
11 votes

#13 - Life Changes, Promises Don't

Season 2 - Episode 48 - Aired 3/22/2014

Hibito contacts Mutta, but tells him he is leaving NASA, but it isn't the end of the road for him as an astronaut. Mutta realizes in order to keep their promise to meet on the moon, he must succeed in his role as CAPCOM.

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Hibito's Choice
star
8.00
15 votes

#14 - Hibito's Choice

Season 1 - Episode 42 - Aired 1/27/2013

Hoshika tells Mutta that Houston will be able to tell if Hibito moved if he fires his remaining flare. Meanwhile, Hibito, who has less than twenty minutes of oxygen left, decides to use his last flare as a makeshift fireplace to provide Damian with some neccessary heat. Hibito eventually reaches the top of the crater and exposes Damian to the sunlight, but becomes stressed when he can't communicate with anyone. Meanwhile, Houston learns of their location, which was at the point Mutta predicted, and learn that Hibito has less than ten minutes of oxygen remaining. After making sure Damian is properly shaded, Hibito decides to take a walk on his own, preparing to walk into the ravine again so he can see the stars once more. Just then, he spots the flash he saw earlier and decides to investigate it, discovering it to be a small astronaut figure left behind by Brian.

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Brian
star
7.92
13 votes

#15 - Brian

Season 1 - Episode 43 - Aired 2/3/2013

Hibito reminisces about Brian, who was something of a mentor to him. Checking the back of the figure, Hibito finds a picture of a young Brian with his brother, realising Brian left the figure there so both brothers would eventually stand on the moon together. The oxygen reserves in Hibito's suit soon runs out, putting Hibito through pain as he gasps for oxygen before almost losing consciousness. Just then, the oxygen producing drone named after Brian arrives on the scene, allowing Hibito to obtain some oxygen in the very nick of time.

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Promise Sign
star
7.88
8 votes

#16 - Promise Sign

Season 2 - Episode 8 - Aired 5/25/2013

Pico 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.

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Young Excitement
star
7.88
8 votes

#17 - Young Excitement

Season 2 - Episode 12 - Aired 6/22/2013

The 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.

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Eighty Minutes to Live
star
7.87
15 votes

#18 - Eighty Minutes to Live

Season 1 - Episode 41 - Aired 1/20/2013

As NASA discusses rescue operations for Hibito and Damian, Azuma suggests that they send remote controlled probes to assist them whilst the other astronauts wait for their buggy to be charged. Although Hibito recovers from his fall, Damian informs him that his main oxygen tank has been punctured, leaving him with just eighty minutes of oxygen remaining. Despite this, Hibito resumes his attempt to rescue Damian, managing to reach the probe and reactivate it. Meanwhile, Mutta, having just heard the news, arrives at JAXA and gives them some input based on how he feels Hibito would act, though this advice is ignored by NASA.

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Running Bus
star
7.86
14 votes

#19 - Running Bus

Season 1 - Episode 10 - Aired 6/3/2012

Before heading off to JAXA for the third exam, Mutta visits Sharon who tells him not to worry about not having a reason to go into space like Serika and Kenji has. As the exam begins, the applicants board a strange bus supposedly heading towards a top secret facility, with only Kenji noticing there are cameras onboard. An hour into the journey, they begin an exercise in which each applicant spends ten minutes talking to each other. Afterwards, they are asked to fill in a survey ranking everyone's potential to be an astronaut, followed by a meal and a rest before the bus arrives somewhere.

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Two Men in the Park
star
7.86
14 votes

#20 - Two Men in the Park

Season 1 - Episode 37 - Aired 12/16/2012

As Mutta becomes anxious about whether he has enough luck to pass, Hoshika decides to share the load of revealing the results. The first person he calls is Mizoguchi, who is shocked to learn he has failed as he was always the top in everything he did. When asked why he failed, Hoshika explains it is his lack of depending on others that caused him to fail. Afterwards, Hoshika asks Mutta to meet him at the park, where he personally reveals that Mutta has passed his exam. Hoshika then takes Mutta straight to the press conference.

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Those Who Wait for Hibito
star
7.86
7 votes

#21 - Those Who Wait for Hibito

Season 2 - Episode 10 - Aired 6/8/2013

As 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.

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Trapped Rivals
star
7.85
13 votes

#22 - Trapped Rivals

Season 1 - Episode 11 - Aired 6/10/2012

Arriving at an undisclosed location, the applicants are shown footage of the last moments of a group of astronauts before they died due to a chute failure upon reentry, in order to determine their willingness to continue with the exam. After everyone agrees to continue with the exam, the group is split up into three teams with each team spending two weeks together in a sealed environment before determining which two of them would make the best astronauts. Mutta is placed in a team with Serika, Reiji Nitta, Naoto Fukuda and Yasushi Furuya. The first assignment involves figuring out what the current time is, where Mutta comes up with a surprisingly precise answer.

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Nitta and Mutta
star
7.85
13 votes

#23 - Nitta and Mutta

Season 1 - Episode 50 - Aired 3/24/2013

Nitta explains that he had left his phone behind somewhere, which he needs as he is expecting an important call. Nitta opts to go alone to search for it, but Mutta, being the leader, decides it would be best to search alongside him at night once they set up camp. Along the way, Nitta explains he is waiting for a call from his younger brother, Kazuya, who he hasn't spoken to in two years. Mutta suspects that Nitta may have dropped his phone near the previous food crate when Mutta tackled him, which motivates Nitta to rush to its location. Arriving at the crate, Nitta finds his phone as it flashes, only to find he had barely missed a call from Kazuya.

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Little Brother Hibito and Big Brother Mutta
star
7.83
24 votes

#24 - Little Brother Hibito and Big Brother Mutta

Season 1 - Episode 1 - Aired 4/1/2012

The 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.

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Nitta the Leader
star
7.83
12 votes

#25 - Nitta the Leader

Season 1 - Episode 49 - Aired 3/17/2013

As Mutta's team find their rations and set up camp for a night, they are informed they are currently last in the rankings, which requires one person beside the leader to take a punishment. Mutta volunteers for the punishment, in which he must stand at attention for a whole hour, but the group soon cheer up when they are treated to a beautiful view of the stars. Later on the fourth day, as Nitta is chosen as the leader, he appears to be a bit more strict with his desire to increase their ranking, whilst also expecting a call from a certain someone. Just then, Mutta pushes Nitta out of the way of their ration box when he notices a rattlesnake. Following the incident, Davis issues the leader with a handgun to defend themselves against dangerous wildlife. On the fifth day, as Mutta acts as leader and helps the group push onwards, Nitta suddenly tells the others that he must head back.

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