List of Space Brothers episodes

Space Brothers (宇宙兄弟 Uchū Kyōdai) is a 2012 Japanese anime television series produced by A-1 Pictures based on the original manga series by Chūya Koyama. The story follows a man named Mutta Nanba who one day gets the chance to follow his younger brother Hibito and become an astronaut. The series aired in Japan from April 1, 2012 to March 22, 2014 and was also simulcasted on Crunchyroll.^[1] The series has been licensed by Sentai Filmworks in North America.^[2]

Episode list

1st year

Ep no.	Title	Original air date	Viewership ratings (Kantō Area)
01	"Little Brother Hibito and Big Brother Mutta" "Otōto Hibito to Ani Mutta" (弟ヒビトと兄ムッタ)	April 1, 2012[3]	3.3
In the summer of 2006, brothers Hibito and Mutta Nanba spot a strange UFO which flies off to the moon. In 2025, Hibito has since become an astronaut who is due to go on a mission towards the moon. Mutta, on the other hand, has just been fired from his job at an automobile company for head-butting his supervisor and has to move in with his parents. Upon hearing about Mutta's job loss, Hibito sends him an e-mail telling him to listen to the tape they recorded on that day in 2006. In the tape, the young Mutta, upon hearing Hibito's desire to go to the moon, decided his goal would be to go one step further and aim for Mars. A month later, Mutta receives a letter from JAXA saying he has been accepted for an astronaut program.
02	"My Shining Star" "Ore no Kin Pika" (俺の金ピカ)	April 8, 2012[3]	3.9
Mutta, who is unsure about whether he should take the astronaut exam, visits an old astronomy friend named Sharon Kaneko, who encourages him to go for it. Mutta takes the first exam and manages to successfully pass. As Mutta becomes a bit concerned when he is distracted by a loose screw on his chair during the interviews for the second exam, he makes friends with another applicant, Kenji Makabe, whilst gaining a crush on a female applicant, Serika Itou. Meanwhile, behind doors, the interviewer reveals that he fiddled with the chair on purpose to see who would notice, with Mutta, Kenji and Serika allegedly being the only ones who did.
03	"The Man with the Advantage and the Running Female Doctor" "Yūri na Otoko to Hashiru Joi" (有利な男と走る女医)	April 15, 2012[3]	3.1
Medical exams begin and Mutta feels a bit of pressure with everyone thinking he has an advantage being Hibito's brother. Later that evening, Serika takes an interest in Mutta when she spots him peeking inside an astronaut suit's helmet, reminding her of her father. The next day, Mutta and Keiji spot Serika doing the exact same thing.
04	"Next to Hibito" "Hibito no Tonari" (日々人の隣)	April 22, 2012[3]	3.1
The final part of the second round of examinations is an interview, with Mutta facing a little difficulty when he is asked an obscure question at the end of his interview. Meanwhile, Hibito hears of a family support program. As the exams come to a close, Mutta becomes worried about how he did in his interview, but cheers up when Kenji gets him Serika's e-mail address. The next day, Mutta receives a call from Hibito who invites him to come to Houston to spend some time at NASA.
05	"Days of Missing" "Tarinai Hibi" (足りない日々)	April 29, 2012[3]	2.1
Mutta arrives in Houston where he meets up with Hibito, along with his pet pug, Apo. At his home, Hibito points out to Mutta that he has lost his competitiveness with him. The next day, Mutta talks with dog walkers Mr. and Mrs. Smith, who teach him a bit about how Hibito thinks of him. Later, Mutta decides to be a bit more competitive with Hibito. Meanwhile, back at JAXA, one of the judges seems to be against Mutta's application.
06	"Et Cetera in My Head" "Atama ni Matsuwaru Eto Setora" (頭にまつわるエトセトラ)	May 6, 2012[3]	2.6
As Mutta arrives at the Johnson Space Center to observe Hibito's training, one of the JAXA judges brings up the reason Mutta was fired from his previous job. As Hibito appears on a television show that night, Mutta is surprised when Hibito starts praising him. Just then, Mutta receives a call from his former workmates informing them of what his former boss had told JAXA. As Mutta becomes convinced he has lost his chance of becoming an astronaut, one of the other JAXA judges, Hoshika, who had been observing Mutta and Hibito's constant visits to JAXA since they were kids, meets up with Mutta's former workmates to get the whole story.
07	"Dear Hibito" "Haikei Hibito" (拝啓日々人)	May 13, 2012[3]	3.4
As Hibito notices Mutta acting strangely, he suspects that something is up. Mutta eventually confesses about his high chance of failure, and appears to have resided to think he has no chance. Meanwhile, Hoshika has trouble trying to convince another judge to change his mind about Mutta. As Mutta spends time with the pet walkers following being told off by Hibito, the restaurant he is visiting is attacked by a fire extinguisher wielding robber.
08	"Smoky Heaven" "Hakuen Tengoku" (白煙天国)	May 20, 2012[3]	3.4
As Mutta's somehow manages to apprehend the robber by chance, he gains a lot of attention and is praised as a hero on a live TV broadcast, which is seen by Hibito and the JAXA judges. Afterwards, Mutta receives a video message from his parents, revealing he has passed the second exam. Before leaving for Japan, Mutta discovers a hidden set of wills written by Hibito which leaves him concerned.
09	"Individual Resolve" "Sorezore no Kakugo" (それぞれの覚悟)	May 27, 2012[3]	3.3
As he arrives in Japan, Mutta remains concerned about the wills Hibito wrote before going outside to see the International Space Station in the sky. Later, he meets up with Kenji and Serika to celebrate making it to the third exam. The three talk about their motives for going into space, with Serika wanted to go on the ISS, despite the fact it will probably be shut down by the time she makes it to space. He hears from another colleague that she wants to carry on the dream of her late father to develop medicine to cure a disease, which can only be done on the ISS.
10	"Running Bus" "Basu Basu Hashiru" (バスバス走る)	June 3, 2012[3]	3.0
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 on board. 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.
11	"Trapped Rivals" "Tojikomerareta Raibaru Tachi" (閉じ込められたライバル達)	June 10, 2012[4]	2.4
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.
12	"My Name Is Itou Serika" "Watashi no Namae wa Itō Serika Desu" (わたしの名前は伊東せりかです)	June 17, 2012[4]	3.8
Mutta comes up with a method for his prediction, hiding the fact he had simply noticed what time it was when he left the bus. As Serika's hunger keeps her up, she recalls when she asked her father what the meaning behind her name was. The next morning, as the teams have to decide how to handle the food supply, they also discuss how to go about deciding which two candidates to pick to be astronauts. After everyone on Team A introduces themselves, Serika decides to let Mutta call her by her first name.
13	"3-D Ant" "San Jigen Ari" (3次元アリ)	June 24, 2012[4]	2.8
Reiji grows concerned about a heart monitoring bracelet everyone is wearing, as well as a rule in which if one team member leaves, the entire team is disqualified. After a few physical and mental tasks, the teams are tasked with writing a letter to win over a journalist who is critical of space exploration. Mutta recalls when he and Hibito went to a lecture held by Soichi Noguchi about how seeing things from a different perspectives brings new solutions. After thinking about the story, Mutta decides the right action is not to protest but instead show her the third dimension offered by outer space, which will be made apparent once Hibito reaches the moon.
14	"Broken Glasses and the Sole of the Foot" "Kowareta Megane to Ashi no Ura" (壊れたメガネと足の裏)	July 1, 2012[4]	3.3
As Naoto recalls how his work in developed a manned spacecraft alienated him from his family, his glasses get broken when they are accidentally stepped on by Yasushi. Despite his reduced visibility, Naoto becomes determined to not let it stop him. After Yasushi hears from Serika about how Naoto quit his job in order to get a chance for astronaut selection, he swallows his pride and asks mission control to order new glasses for him.
15	"Let's Talk About Space" "Uchū no Hanashi o Shiyō" (宇宙の話をしよう)	July 8, 2012[4]	3.0
As the JAXA staff decide to order Naoto new glasses as per Yasushi's request, Hoshika steps in to observe the exam. The next day, as Team B is put on edge when an alarm starts going off in the middle of the night, Team A discovers their clock has gone missing, later finding it smashed. The applicants are soon tasked with completing a blank puzzle within three hours. As the situation in Team A becomes tense as Yasushi accuses Serika of breaking the clock, Mutta tries to calm the situation by having everyone talk about space, getting them to consider JAXA broke the clock so they could learn to depend on their own sense of time whilst hiding the fact he saw Naoto break the clock.
16	"Alarm, but No Clock" "Arāmu Ari Tokei Nashi" (アラームアリ時計ナシ)	July 15, 2012[4]	3.6
After the puzzle challenge ends before anyone manages to complete it, Mutta confronts Naoto about what he saw, but he only tasks him with finding out the reason why he broke the clock. Meanwhile, Team B continues to be plagued by the mysterious alarm, which is secretly being controlled by one of the participants, and soon find their clock has been tampered with as well. Meanwhile, as Serika grows concerned that she's used too much food for cooking, with not much left for the remaining four days, Team A is soon given their own alarm problem.
17	"The Culprit Is in the Room" "Hannin wa Kono Naka ni Iru" (犯人はこの中にいる)	July 22, 2012[4]	2.6
As Team A searches for the mysterious alarm, Mutta notices some strange behaviour in Yasushi. Having been reminded about the cameras by Naoto, Mutta believes JAXA is behind these incidents. He recalls what he learnt whilst visiting Houston, in which green cards are given to astronauts in training instructing them to create problems. Thus, Mutta correctly deduces that both Naoto and Yasushi had been given green cards ordering them to break the clock and set off the alarm. Later, Serika confesses about the food shortage to Mutta, who mistakenly believes it to be another green card order.
18	"Roo-ra! Kenji!" "Kape! Kenji!" (かぺ!けんじ!)	July 29, 2012[4]	2.7
After a few more green card related incidents, Mutta is given his own green card, prompting him to make random noises throughout the day. Meanwhile, as Team B continues facing issues, Kenji is put under pressure when he is told to withdraw from the selections, feeling he has done nothing to improve teamwork. As Kenji seriously contemplates withdrawing, he recalls what his daughter said to him, realising she was telling him to do his best and regaining his confidence.
19	"The Day Before Goodbye" "Saraba no Mae no Hi" (さらばの前の日)	August 5, 2012[4]	3.8
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.
20	"The Worst Possible Punishment" "Ichiban Hidoi Shiuchi" (一番酷い仕打ち)	August 12, 2012[4]	2.3
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 their 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.
21	"A Long-Awaited Glimpse of the Sky" "Hisashiburi no Sora" (久しぶりの空)	August 19, 2012[5]	2.7
After Team A decide their selections after one round, the third exam comes to its end and Team A is met with applause from the staff. Upon venturing out into the open sky again, the applicants discover they had been at JAXA the entire time. As Mutta and Kenji discuss how those who weren't selected may still have a chance, Yasushi, who lost out in the match, visits a much-admired professor, Hiroto Baba, who shows him his newly designed spacesuit. Whilst heading for a celebratory meal with the rest of Team A, Yasushi recalls how he got interested in space, but was troubled that he was too short to become an astronaut. This led him to admire Baba when he invented a smaller spacesuit which lowered the minimum height requirement to become an astronaut.
22	"Working on the Dream" "Yume no Tochū" (夢の途中)	September 2, 2012[5]	2.8
Team A get together to celebrate the winners of the match, Serika and Reiji, on passing the third exam. Meanwhile, the JAXA staff have discussions about which of the remaining candidates to select, with Hoshika pointing out how Team A was the only one who promised to get together upon leaving. Four days later, it is revealed Houston will select one male from the remaining candidates to join the others, with Mutta assuming Kenji is likely to be chosen over him. As Mutta worries about his lack of luck, Hibito carries on his training, curious about what Mutta's reply will be. As Mutta hangs out with Naoto, it is revealed that Mutta had been chosen to go to Houston which both excites Mutta but also causes him to be concerned about Kenji.
23	"Father, Son, and Mutta Claus" "Oyaji to Musuko to Mutta Kurōsu" (親父と息子とムッタクロース)	September 9, 2012[5]	3.1
Mutta takes up a part-time job as a shopping mall Santa to earn some money before his trip to Houston. Meanwhile, Yuri Teshima, one of the candidates from Team B, shows his father his passion for extra terrestrial life. As Mutta hears from JAXA about when he is to depart for Houston, he learns that Kenji was in fact chosen alongside him, as Yuri had decided to turn down his application to pursue a career in marine biology. Sera visits her father's grave, leaving a diary of everything she got up to in the past year, whilst Mutta visits Kenji. With the final exam in two months, coinciding with Hibito's mission into space, Mutta decides to head to Houston ahead of schedule.
24	"The Worst Possible Interviewer" "Saiaku no Shinsain" (最悪の審査員)	September 16, 2012[5]	2.6
As Hibito trains to use a space vehicle for his moon mission, Mutta does some lawn mowing for Ozzy. Later, Mutta has dinner with Jennifer and Lowry, Hibito's backup, where he learns the examiner for the final exams will be Takio Azuma, who allegedly holds a grudge against Hibito for being selected to go on the moon instead of him, putting Mutta at a disadvantage.
25	"Sonic Little Brother Training Big Brother" "Mahha no Otōto Kin Tore Ani" (マッハの弟 筋トレ兄)	September 23, 2012[5]	2.2
As Hibito recalls how he came to admire Azuma, he tells Mutta how his final astronaut selection exam was an interview with one of the Japanese astronauts. As Mutta ponders how he should spend his time before the exam, he witnesses Hibito piloting a jet craft, reminding Mutta of how he came to support him. As the day count down towards Hibito's launch, Mutta trains his body and mind with Ozzy to prepare for his interview. Seven days before the launch, as Hibito is moved into quarantine, Serika and the other candidates travel with Mutta's parents to Houston.
26	"Painful Interview" "Itami o Tomonau Mensetsu" (痛みを伴う面接)	September 30, 2012[5]	3.0
As the day of the final exam arrives, Nanba is hindered by aching leg muscles due to all the squats he did the other day. After entering the interview room and meeting the examiners, including Azuma and Soichi Noguchi, Mutta sits down only for his chair to break due to a combination of a screw loosened by one of the examiners and Mutta's tenseness in hiding his cramps. After the interviews end, the candidates have a celebratory meal with the examiners. Unbeknownst to the candidates, the interview was a decoy intended to drop their guard as the examiners make observations outside of an exam environment. As Mutta is secretly probed for his observations on the other candidates, he comes face to face with Azuma.
27	"One Question" "Hitotsu no Shitsumon" (一つの質問)	October 7, 2012[5]	2.4
As Mutta decides to converse with Azuma, he asks him a question that another astronaut previously asked him; "Are you prepared to die?". Mutta gives an honest reply that he would try to survive if possible, which is similar to how both Azuma and Hibito answered the same question. As Mutta and other candidates head off to Florida, he recalls how he and Hibito spent months trying to get footage of the UFO they say, since no one else saw it due to the Zidane headbutt incident. Upon arriving in Florida, Mutta and his parents go to see Hibito, giving him a DVD-R titled "The Miracle of Doha" to take to the moon with him.
28	"Miracle of Doha" "Dōha no Kiseki" (ドーハのきせき)	October 14, 2012[5]	2.6
Hibito recalls how Mutta was bullied by those who didn't believe him about the UFO. Wanting to find proof of UFOs existing in order to stop the bullying without resorting to violence himself, he decided to make his own UFO, giving the footage he filmed to Mutta for his 13th birthday. Despite obviously telling it was a fake, Mutta appreciated the thought and treasured the DVD. When the bullies started turning on Hibito instead, Mutta fought against them with his headbutt.
29	"Night Before Launch" "Uchiage Zen'ya" (打ち上げ前夜)	October 21, 2012[5]	3.5
The Mars V rocket containing parts for the construction of a moonbase is successfully launched into space. On the night before Hibito's launch, Mutta is visited by his mother, who expresses her concerns about the launch. On the morning of the launch, NASA reports a 60% chance of the launch being postponed due to the weather, but Hibito remains optimistic that the launch will go ahead. As Mutta and Kenji visit the news center for updates on the weather, a kid with a punk hairstyle sets Apo loose.
30	"Dog, Old Man, and Alexander" "Inu to Jijii to Arekusandā" (犬とじじいとアレクサンダー)	October 28, 2012[5]	2.9
As Mutta and the others search for Apo, Mutta finds Apo and is driven off by a strange NASA employee named Deneil Young, who takes Mutta for a ride to a place featuring abandoned training facilities. Reaching the top of an old blockhouse, Mutta is treated to a spectacular view of the launchpad. As the Mars I finally lifts off, Mutta stands back and watches in awe.
31	"Rocket Road" "Roketto Rōdo" (ロケットロード)	November 4, 2012[6]	1.8
As Hibito and his crew finally make it into the weightlessness of space, Mutta thinks back to when he and Hibito attended a broadcast of Akihiko Hoshide aboard the ISS, answering Hibito's question and giving him the encouragement to become an astronaut. Back in the present, Deneil reveals to Mutta that he was the one who taught Hibito to fly a jet, saying they will meet again on the airfield should Mutta be selected.
32	"A Private Place" "Haitte wa Ikenai Basho" (入ってはいけない場所)	November 11, 2012[6]	2.6
As the candidates celebrate Hibito's launch, they are informed they will return to Japan and will hear of the results a week after Hibito lands on the moon, though Mutta opts to stay in Houston until Hibito lands on the moon. Later on, Hibito gives an interview aboard the Orion as it makes his journey to the moon, which is broadcast across Japan. As Mutta spends time with Jennifer, she shows him Azuma with his family. As Mutta goes to greet them, Azuma shakes his hand and invites him to join them, where he learns more about him from his wife. Later that night, Azuma recalls the pressures she faced from the press after orbiting the moon and how it was Brian Jay who recommended Hibito to be the first to walk on the moon.
33	"Moon Rabbit" "Tsuki no Usagi" (月のウサギ)	November 18, 2012[6]	3.5
As the Orion approaches the moon for landing, Hibito receives a video message from Mutta. The whole of Japan tunes in early in the morning to watch the live broadcast of the moon landing, which Hibito manages to pull off successfully. As Hibito prepares to take his first steps on the moon's surface, he recalls Mutta's video message, assuring him of Azuma's approval. With that in mind, Hibito turns his first step into what would come to be known as 'the moon jump', although Mutta is a little embarrassed by Hibito's 'inspiration first words'.
34	"Pug and Hug on a Moonlit Night" "Tsukiyo no Ban ni Pagu to Hagu" (月夜の晩にパグとハグ)	November 25, 2012[6]	2.5
As the moon mission begins its progress, Hibito notices something shiny on the moon's surface before helping to ease the tension of the rest of the crew. Meanwhile, Mutta arrives back in Japan, bring Apo home with him, hoping he will bring him luck in passing the exam. Whilst grocery shopping, Mutta ends up winning a consolation prize in a lottery, believing he has used up all his luck and becoming paranoid. On the day of the selection announcement, Kenji is the first to be called by JAXA.
35	"From the Little Corner of a Big Facility" "Dadappiroi Shisetsu no Hon no Ikkaku kara" (だだっ広い施設の ほんの一角から)	December 2, 2012[6]	2.7
As Kenji receives his call from JAXA, he thinks back to how his life was before all of this. Though he was generally satisfied with his job, he had always wanted something more. He also recalls when he first met his wife, Yuki, who would later be the one who told him about the astronaut selection programme. This changed his daily life a little more as he began to study towards his dreams. As the results are finally announced, Kenji learns that he has passed the exam to the delight of his family.
36	"Dancing Astronaut" "Odoru Uchū Hikōshi" (踊る宇宙飛行士)	December 9, 2012[6]	2.9
As Serika visits her father's grave after hearing about her results, she recalls her childhood. Being a biologist who studied 'little universes', Rinpei Itou inspired Serika to want to be an astronaut. Rinpei soon became hospitalised with a paralyzing brain disorder, so he asked Serika to start a journal to tell him about her daily life. Rinpei's condition soon worsened, as his condition was revealed to be a rare disease. Reading up on Chiaki Mukai, who was an astronaut who developed cures aboard the ISS, Serika became determined to be the same so she could find a cure for Rinpei's condition. However, he died soon afterwards. Having learnt that she has passed her exams, Serika celebrates with a nostalgic ice pop.
37	"Two Men in the Park" "Kōen ni Ossan Futari" (公園におっさん2人)	December 16, 2012[6]	2.4
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.
38	"Eleventh E-mail" "Jū Ikken Me no Mēru" (11件目のメール)	December 23, 2012[6]	2.9
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.
39	"Lunar Illusions" "Tsuki no Sakkaku" (月の錯覚)	January 6, 2013[6]
As Mutta and the others begin their first day at JAXA, they receive a talk from Murasaki about the training they will go through to become fully fledged astronauts. Meanwhile on the moon, Hibito and co-astronaut Damian are sent on a mission to recover a damaged space probe, struggling with the illusions the moon plays on perception, whilst fellow astronauts Buddy Waters and Karen Jones host a television special. Whilst trying to open a compartment on their buggy, Hibito and Damian lose track of where they are going and end up driving into a crater.
40	"Heaven and Hell" "Tengoku de Jigoku" (天国で地獄)	January 13, 2013[6]
Hibito finds himself trapped inside the crater, separated from Damian and unable to contact Houston. As Hibito searches for Damian, he manages to find the probe they were looking for. A flare alerts Hibito to Damian's position, where he finds Damian has injured his leg and his temperature regulation system is broken, meaning he will soon freeze to death. Although Damian tells Hibito to leave him behind, Hibito instead decides to use the battery from the buggy to power the probe in order to get him out of the crater. As Hibito attempts to climb up the craterside to reach the probe, he loses his grip and falls, damaging his suit on impact.
41	"Eighty Minutes to Live" "Ato Hachi Juppun no Inochi" (あと80分の命)	January 20, 2013[7]	2.1
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.
42	"Hibito's Choice" "Hibito no Sentaku" (日々人の選択)	January 27, 2013[7]	3.1
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 necessary 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.
43	"Brian" "Buraian" (ブライアン)	February 3, 2013[7]
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, Eddie Jay, 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.
44	"Three Astronauts" "San Nin no Uchū Hikōshi" (3人の宇宙飛行士)	February 10, 2013[7]
It is revealed that Hibito was able to be saved because of Azuma's plea to NASA to take into account Mutta's theory as the worst-case scenario and send the Brian drone over to where he suggested. Meanwhile, Mutta is relieved to hear of Hibito's safety once news reaches JAXA. Whilst the other astronauts, Freddy Saturn and Buddy Walters, bring Hibito and Damian back to base, they reminisce about all the things Brian taught them. Three days later, Mutta gets a chance to talk with Hibito, who gives him his deepest thanks for helping to save him, promising that they'll both stand on the moon together.
45	"Five Blue Rangers" "Go Nin no Ao Renjā" (5人の青レンジャー)	February 17, 2013[7]
Mutta pays a visit to Sharon, who is shocked to hear how much danger Hibito was in. She reveals that her astronomy team has received funding to build a lunar telescope on the moon, which would allow people to see further into space, an idea spurred by her late husband, Shinichi, who named an asteroid after her before he died from an illness. This spurs on Mutta to fulfil his promise to Sharon, along with his promise to Hibito. Later, Mutta and the others receive their official JAXA jumpsuits before being informed they will be travelling to Houston tomorrow to begin their joint astronaut training.
46	"Number One Restless Guy" "Sekkachi Yarō Nanbā Wan" (せっかちやろうナンバーワン)	February 24, 2013[7]
As the astronaut candidates arrive at the airport, Serika and Ena think back to their last meals with their friends and family. Serika had dinner with her friends and grandparents whilst Ena spent time with her younger sister, Kei, helping her decide what she wants to do in the future. Meanwhile, Mutta attracts a lot of attention after Murasaki tricks him into putting on his jumpsuit in the airport. Meanwhile at NASA, astronaut Vincent Bold is assigned as the training instructor for the new trainees. Upon arriving at Houston, Mutta meets up with Ozzy, who helps him and Kenji set up accommodation in Hibito's house.
47	"The First Promise" "Saisho no Yakusoku" (最初の約束)	March 3, 2013[7]
Whilst Serika and Ena manage to find a place to live, Mutta becomes curious about something Murasaki allegedly mentioned to Kenji about the training during the flight. Deciding to ask Murasaki himself, he mentions how a few astronauts always seem to leave at some point during the training due to not being up to snuff. He goes on to explain the role of astronauts is akin to those of actors, stating he himself has never gotten the chance to 'stand on stage'. Later, the group go to the mission control center, where Mutta hears from Jennifer that Hibito probably won't be approved for any EVA operations for the duration of the mission. Afterwards, a party is held for all the trainee astronauts, where the group meet Amanti Patel from India, who has a hobby of reading people's fortunes. When asked to read Mutta's future, she has an unsteady feeling.
48	"Always Have a Pedometer in Your Heart" "Kokoro ni Itsumo Manpokei o" (心にいつも万歩計を)	March 10, 2013[7]
The astronaut candidates are briefed on their training, with Bold stating he plans to make everyone go through two years of training in a year and a half, to the surprise of his fellow instructor, Larry Bison. He starts off with the hard stuff right away by putting everyone through survival training in the desert, where they must walk all the way to Amarillo. Mutta's group, consisting of the JAXA candidates and Amanti, is led by Kenji to meet up with their advisors, Mike Davis and, to Mutta's surprise, Lowry, who provide them with lunch before informing them they'll need to forage further meals themselves.
49	"Nitta the Leader" "Rīdā Nitta" (リーダー新田)	March 17, 2013[7]
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 food crate 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.
50	"Nitta and Mutta" "Nitta to Mutta" (ニッタとムッタ)	March 24, 2013[7]
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.
51	"Living Stone" "Ikita Ishikoro" (生きた石コロ)	March 31, 2013[8]
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.

2nd year

Ep no.	Title	Original air date
52	"A Big Brother Should Always..." "Ani to wa Tsune ni" (兄とは常に)	April 6, 2013[8]
Recap episode. Mutta recalls how he first got accepted for the JAXA training program.
53	"Stand on the Moon Together Alive" "Ikite Futari de Tsuki ni Tatō" (生きて二人で月に立とう)	April 13, 2013[8]
Recap episode. Hibito recalls the ordeal of his accident on the moon.
54	"Do I Have Good Luck?" "Ore ni wa Un ga Aru?" (俺には運がある?)	April 20, 2013[8]
Recap episode. Mutta recalls watching Hibito's launch, as well as the events of his JAXA exams.
55	"Distant Goal" "Tōsugiru Gōru" (遠すぎるゴール)	April 27, 2013[8]
On the final day of the survival training, Mutta winds up with a fever, putting the team in a tough decision to either continue pushing onwards or retire. As leader, Amanti understands Mutta's wishes and decides that they will keep on walking, with everyone helping to carry Mutta's belongings. As the team draw close to their goal, an automated rover lands nearby, which is revealed to be part of the next task, in which they must collaborate with an engineer and develop a CanSat rover in two weeks for a Comeback Competition. As the team in last place, Mutta's team is stuck with a lazy engineer named Pico Norton, who has no intention of helping them out. As Mutta rests up from his fever, Pico goes out drinking with Vince.
56	"Promise to Drink" "Sake no Yakusoku" (酒の約束)	May 4, 2013[8]
As the news reports that Hibito will soon be returning from the moon, Pico is put under pressure as he designed the parachute that must help them land safely. After Mutta recovers from his cold, the team try to work on their project without Pico's help, being at a budget disadvantage due to ranking last. Speaking with one of Pico's co-workers, Mutta becomes more unnerved upon hearing Pico developed the parachute deployment system for Hibito's return. When Mutta brings up whether Pico's system was responsible for Brian's accident, it is explained that the head NASA engineer at the time chose another company's parachute for Brian's capsule after a human error resulted in a crash during a test of Pico's system. Hearing this, Mutta brings up to the team that they need to prepare their budget for two rovers, with the anticipation that one of them could fail.
57	"An Engineer's Switch" "Gijutsusha no Suitchi" (技術者のスイッチ)	May 11, 2013[8]
As 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.
58	"Earnest Failure" "Honki no Shippai" (本気の失敗)	May 18, 2013[8]
During 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.
59	"Promise Sign" "Chikai no Sain" (誓いのサイン)	May 25, 2013[8]
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.
60	"Sea Diver and Space Diver" "Uminchu to Uchunchu" (海人と宇宙人)	June 1, 2013[8]
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.
61	"Those Who Wait for Hibito" "Hibito o Matsu Hitobito" (日々人を待つ人々)	June 8, 2013[9]
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.
62	"Those Who Dream Far" "Haruka Tōku o Nozomu Hito" (遥か遠くを望む人)	June 15, 2013[9]
Whilst 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.
63	"Young Excitement" "Wakaki Hi no Doki Doki" (若き日のドキドキ)	June 22, 2013[9]
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 symptoms he had.
64	"Piece of Cake" "Hitokire no Kēki" (一切れのケーキ)	June 29, 2013[9]
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.
65	"Wheelchair Pilot" "Kuruma Isu no Pairotto" (車イスのパイロット)	July 13, 2013[9]
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.
66	"Two Notebooks" "Futatsu no Nōto" (二つのノート)	July 20, 2013[9]
Deneil 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 initially having trouble, Mutta is soon encouraged by Deneil's advice and Sharon's hand written letter, encouraging him to train for what he can.
67	"Deneil-ized" "Denīru-ka" (デニール化)	July 27, 2013[9]
Hibito 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.
68	"Two Keyboards" "Futatsu no Kenban" (二つの鍵盤)	August 3, 2013[9]
As Sharon's symptoms worsened, so did her inability to play the piano. Noticing that Sharon has become less cheerful, Mutta sends her a present. Around the same time, Hibito's schedule has been packed from Parading to the press. In the free time that he had he visited Sharon and presented her with a light-keyed keyboard. Sharon, touched, began to well up in tears. Tamura who saw Hibito's present from afar began to look at him in awe. As Mutta had sent the very same present.
69	"Next to Hibito" "Hibito ni Narabu" (日々人に並ぶ)	August 10, 2013[9]
Mutta has finally finished pilot-training and in respect of Deniel's retirement, he had dumped water on him (a tradition of some kind). Finally, officially becoming an astronaut, Mutta receives his badge and certificate in addition to taking a photo. And as Mutta had hoped in the beginning, his photo was placed on the very area that he marked. As his picture showed his huge and touched smile, Nasuda began to wonder whether it would've been better to put a different photo, while Hoshika thought the opposite. Knowing that this was good enough since he got to see Mutta where he belonged. Right next to Hibito.
70	"Determination to Give Up" "Akirame no Yō na Kakugo" (諦めのような覚悟)	August 17, 2013[9]
After finishing his training, Mutta was summoned by Mr. Butler. During the conversation, Mr. Butler had given Mutta a proposal, asking him whether he would like to become a back up crew on the ISS. Mutta, not sure of what to do asked for a little time to think. This was definitely a faster way to go into space, but it would take longer to get to the moon. So Mutta followed his heart and declined the offer, only to request that Serika takes his place. Vince had confronted him later saying that Mr. Butler had found a place to keep him for a while. But finding out that he was in the engineering section, Mutta found himself becoming discouraged. Vince, before leaving had told Mutta a few words of wisdom. That's when Mutta regained his determination.
71	"Rehearsal" "Rihāsaru" (リハーサル)	August 31, 2013[10]
Hibito and Mutta do a photo session to appear on the cover of a Japanese magazine. Meanwhile, Hibito discovers his panic disorder when using space suits, and NASA denies him new lunar missions until he's completely recovered.
72	"Hibito's Disorder" "Hibito no Shōgai" (日々人の障害)	September 7, 2013[10]
73	"A Road on the Roadless Moon" "Michi Naki Tsuki ni Michi o" (道なき月に道を)	September 14, 2013[10]
74	"Magic Trick" "Mahō no Urawaza" (魔法の裏技)	September 21, 2013[10]
75	"My Hands" "Watashi no Ryōte" (わたしの両手)	September 28, 2013[10]
76	"Olga" "Origa" (オリガ)	October 5, 2013[10]
77	"An Astronaut's Daughter" "Uchū Hikōshi no Musume" (宇宙飛行士の娘)	October 12, 2013[10]
78	"Out of Time" "Jikangire" (時間切れ)	October 19, 2013[10]
79	"Olga, Hibito, and Gagarin" "Origa to Hibito to Gagārin" (オリガとヒビトとガガーリン)	October 26, 2013[10]
80	"Secret" "Himitsu" (秘密)	November 2, 2013[10]
81	"Worst Enemy" "Ichiban no Teki" (一番の敵)	November 9, 2013[11]
82	"Space Family" "Uchū Kazoku" (宇宙家族)	November 16, 2013[11]
83	"Kenji and I" "Ore to Kenji" (俺とケンジ)	November 23, 2013[11]
84	"Supandaman" "Sūpandaman" (スーパンダマン)	November 30, 2013[11]
85	"On the Moon" "Getsumen ni Ita" (月面にいた)	December 7, 2013[11]
86	"For Tomorrow" "Ashita no Tame ni" (明日のために)	December 14, 2013[11]
87	"To the Place Where I Belong" "Jibun no Basho e" (自分の場所へ)	December 21, 2013[11]
88	"Pretty Dog" "Puriti Doggu" (プリティ・ドッグ)	January 4, 2014[11]
89	"Last Words" "Saigo no Kotoba" (最後の言葉)	January 11, 2014[11]
90	"A Small Note and a Big Lucky Charm" "Chitchai Memo to Dekkai O Mamori" (小っちゃいメモとでっかいお守り)	January 18, 2014[11]
91	"How to Help Hibito" "Hibito no Sukuikata" (ヒビトの救い方)	January 25, 2014[12]
92	"Lonely People" "Kodoku na Karera" (孤独な彼ら)	February 1, 2014[12]
93	"In the Corner of My Heart" "Kokoro no Katasumi ni" (心の片隅に)	February 8, 2014[12]
94	"Exciting Teamwork" "Waku Waku Chīmuwāku" (ワクワクチームワーク)	February 15, 2014[12]
95	"Our Future" "Orera no Shōrai" (俺らの将来)	February 22, 2014[12]
96	"Astronaut and Father" "Uchū Hikōshi de Ari Chichi de Ari" (宇宙飛行士であり父であり)	March 1, 2014[12]
97	"Won't Go Away" "Kienainda" (消えないんだ)	March 8, 2014[12]
98	"The Ultimate Astronaut" "Saikyō no Uchū Hikōshi" (最強の宇宙飛行士)	March 15, 2014[12]
99	"Life Changes, Promises Don't" "Jinsei Kahen, Yakusoku Fuhen" (人生可変、約束不変)	March 22, 2014[12]

Music listing

Sixteen pieces of theme music were used; eight opening themes and eight ending themes.

Space Brothers Opening and Ending Themes

First Episode	Last Episode	Opening Theme	Ending Theme
1	13	"Feel So Moon" by Unicorn	"Subarashiki Sekai" by Rake (素晴らしき世界, lit. "This Wonderful World")
14	26	"Eureka" by Sukima Switch (ユリーカ, Yurīka)	"Kokuhaku" by Angela Aki (告白, lit. "Confession")
27	38	"Yumemiro Sekai" by DOES (夢見る世界, lit. "Dream-like World")	"Tete" by Akihisa Kondō (テテ)
39	51	"Small World" by Fuji Fabric	"Goodbye Issac" by Motohiro Hata (グッバイ・アイザック, Gubbai Aizakku)
52	64	"Kienai E" by Magokoro Brothers (消えない絵, lit. "Non-Disappearing Drawing")	"Beyond" by Miho Fukuhara
65	75	"Crater" by Merengue (クレーター, Kurētā)	"Yozora no Taiyō" by Flower Companyz (夜空の太陽, lit. Sun in the Night Sky)
76	87	"HALO" by Tacica	"New World" by Kasarinchu
88	99	"B.B" by Yatou	"Anata ga Ireba OK!" by Serena (あなたがいればOK!)

References

1. "Crunchyroll to Stream Space Brothers". Anime News Network. 2012-03-29. Retrieved 2012-07-31.
2. "Sentai Filmworks Licenses Space Brothers TV Anime". Anime News Network. Retrieved 1 July 2012.
3. "Episodes #1-10". Yomiuri Telecasting Corporation. Retrieved 2016-01-03.
4. "Episodes #11-20". Yomiuri Telecasting Corporation. Retrieved 2016-01-03.
5. "Episodes #21-30". Yomiuri Telecasting Corporation. Retrieved 2016-01-03.
6. "Episodes #31-40". Yomiuri Telecasting Corporation. Retrieved 2016-01-03.
7. "Episodes #41-50". Yomiuri Telecasting Corporation. Retrieved 2016-01-03.
8. "Episodes #51-60". Yomiuri Telecasting Corporation. Retrieved 2016-01-03.
9. "Episodes #61-70". Yomiuri Telecasting Corporation. Retrieved 2016-01-03.
10. "Episodes #71-80". Yomiuri Telecasting Corporation. Retrieved 2016-01-03.
11. "Episodes #81-90". Yomiuri Telecasting Corporation. Retrieved 2016-01-03.
12. "Episodes #91-99". Yomiuri Telecasting Corporation. Retrieved 2016-01-03.