Space Brothers — Episodes, Where to Watch & Characters

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Watch & episode guide

Episodes

#1Little Brother Hibito and Big Brother MuttaThe pet dog Apo takes the leading role in this original flash anime story.2012-03-23 · 24m

#2My Shining StarMutta, 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…2013-02-22 · 24m

#3The Man with the Advantage and the Running Female DoctorMedical 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…2014-08-09 · 24m

#4Next to HibitoThe 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.2012-04-01 · 24m

#5Days of MissingWith 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…2012-04-08 · 24m

#6Et Cetera in My HeadAfter 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…2012-04-15 · 24m

#7Dear HibitoAfter 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.2012-04-22 · 24m

#8Smoky HeavenAfter 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…2012-04-29 · 24m

#9Individual ResolveAs 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…2012-05-06 · 24m

#10Running BusAs 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…2012-05-13 · 24m

#11Trapped RivalsAs 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…2012-05-20 · 24m

#12My Name Is Itou SerikaAs 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…2012-05-27 · 24m

#133-D AntBefore 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…2012-06-03 · 24m

#14Broken Glasses and the Sole of the FootArriving 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…2012-06-10 · 24m

#15Let's Talk About SpaceMutta 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…2012-06-17 · 24m

#16Alarm, but No ClockNitta 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…2012-06-24 · 24m

#17The Culprit Is in the RoomAs 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…2012-07-01 · 24m

#18Roo-ra! Kenji!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…2012-07-08 · 24m

#19The Day Before GoodbyeAfter 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…2012-07-15 · 24m

#20The Worst Possible PunishmentAs Team A searches for the mysterious alarm, Mutta notices some strange behaviour in Yasushi. Haven't been reminded about the cameras by Naoto, Mutta believes JAXA is behind these incidents. He recalls what he learnt…2012-07-22 · 24m

#21A Long-Awaited Glimpse of the SkyAfter 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…2012-07-29 · 24m

#22Working on the DreamAs 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…2012-08-05 · 24m

#23Father, Son, and Mutta ClausAs 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…2012-08-12 · 24m

#24The Worst Possible InterviewerAfter 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…2012-08-19 · 24m

#25Sonic Little Brother Training Big BrotherTeam 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…2012-09-02 · 24m

#26Painful InterviewMutta 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.…2012-09-09 · 24m

#27One QuestionAs Hibito trains to use a space vechile 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…2012-09-16 · 24m

#28Miracle of DohaAs 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…2012-09-23 · 24m

#29Night Before LaunchAs 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…2012-09-30 · 24m

#30Dog, Old Man, and AlexanderAs 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…2012-10-07 · 24m

#31Rocket RoadHibito 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…2012-10-14 · 24m

#32A Private PlaceThe 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.…2012-10-21 · 24m

#33Moon RabbitAs Mutta and the others search for Apo, Mutta finds him being carried off by a strange old NASA employee named Deneil Young, who takes Mutta for a ride to a place featuring abandoned training facilities. Reaching the top…2012-10-28 · 24m

#34Pug and Hug on a Moonlit NightAs Hibito and his crew finally make it into the weightlessness of space, Mutta thanks back to when he and Hibito attended a broadcast of Akihiko Hoshide aboard the ISS, answering Hibito's question and giving him the…2012-11-04 · 24m

#35From the Little Corner of a Big FacilityAs 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…2012-11-11 · 24m

#36Dancing AstronautAs 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…2012-11-18 · 24m

#37Two Men in the ParkAs 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…2012-11-25 · 24m

#38Eleventh E-mailAs 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…2012-12-02 · 24m

#39Lunar IllusionsAs 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…2012-12-09 · 24m

#40Heaven and HellAs 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…2012-12-16 · 24m

#41Eighty Minutes to LiveUpon 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…2012-12-23 · 24m

#42Hibito's ChoiceAs 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…2013-01-06 · 24m

#43BrianHibito finds himself trapped inside the crater, seperated 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…2013-01-13 · 24m

#44Three AstronautsAs 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…2013-01-20 · 24m

#45Five Blue RangersHoshika 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…2013-01-27 · 24m

#46Number One Restless GuyHibito 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…2013-02-03 · 24m

#47The First PromiseIt 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…2013-02-10 · 24m

#48Always Have a Pedometer in Your HeartMutta 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…2013-02-17 · 24m

#49Nitta the LeaderAs 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…2013-02-24 · 24m

#50Nitta and MuttaWhilst 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…2013-03-03 · 24m

Episodes 51 to 99

51. Living Stone · 2013-03-10
52. A Big Brother Should Always... · 2013-03-17
53. Stand on the Moon Together Alive · 2013-03-24
54. Do I Have Good Luck? · 2013-03-31
55. Distant Goal · 2013-04-06
56. Promise to Drink · 2013-04-13
57. An Engineer's Switch · 2013-04-20
58. Earnest Failure · 2013-04-27
59. Promise Sign · 2013-05-04
60. Sea Diver and Space Diver · 2013-05-11
61. Those Who Wait for Hibito · 2013-05-18
62. Those Who Dream Far · 2013-05-25
63. Young Excitement · 2013-06-01
64. Piece of Cake · 2013-06-08
65. Wheelchair Pilot · 2013-06-15
66. Two Notebooks · 2013-06-22
67. Deneil-ized · 2013-06-29
68. Two Keyboards · 2013-07-13
69. Next to Hibito · 2013-07-20
70. Determination to Give Up · 2013-07-27
71. Rehearsal · 2013-08-03
72. Hibito's Disorder · 2013-08-10
73. A Road on the Roadless Moon · 2013-08-17
74. Magic Trick · 2013-08-31
75. My Hands · 2013-09-07
76. Olga · 2013-09-14
77. An Astronaut's Daughter · 2013-09-21
78. Out of Time · 2013-09-28
79. Olga, Hibito, and Gagarin · 2013-10-05
80. Secret · 2013-10-12
81. Worst Enemy · 2013-10-19
82. Space Family · 2013-10-26
83. Kenji and I · 2013-11-02
84. Supandaman · 2013-11-09
85. On the Moon · 2013-11-16
86. For Tomorrow · 2013-11-23
87. To the Place Where I Belong · 2013-11-30
88. Pretty Dog · 2013-12-07
89. Last Words · 2013-12-14
90. A Small Note and a Big Lucky Charm · 2013-12-21
91. How to Help Hibito · 2014-01-04
92. Lonely People · 2014-01-11
93. In the Corner of My Heart · 2014-01-18
94. Exciting Teamwork · 2014-01-25
95. Our Future · 2014-02-01
96. Astronaut and Father · 2014-02-08
97. Won't Go Away · 2014-02-15
98. The Ultimate Astronaut · 2014-02-22
99. Life Changes, Promises Don't · 2014-03-01

Streaming availability via the Kitsu catalog. AnimeVerse does not host video: the Watch button opens the official rights-holder's platform, where a subscription may be required.

Quick facts

Episodes99

Seasons3

StatusFinished

Aired2012

Japanese title: 宇宙兄弟
Also known as: Uchuu Kyoudai, Uchu Kyodai, Uchuu Kyodai

Synopsis

On a fateful summer night in 2006, Mutta Nanba and his younger brother Hibito witness what they believe to be a UFO flying toward the Moon. This impressing and unusual phenomenon leads both siblings vowing to become astronauts, with Hibito aiming for the Moon and Mutta, convinced that the eldest brother has to be one step ahead, for Mars. Now an adult, life hasn't turned out how Mutta had pictured it: he is diligently working in an automotive company, whereas Hibito is on his way to be the very first Japanese man to step on the Moon. However, after losing his job, Mutta is presented with an unexpected opportunity to catch up to his younger brother when the Japanese Aerospace Exploration Agency, commonly known as JAXA, accepts his application to participate in the next astronaut selection. Despite self-doubts about his prospects, Mutta is unwilling to waste this chance of a lifetime, and thus embarks on an ambitious journey to fulfill the promise made 19 years ago. \[Written by MAL Rewrite\]