Uchuu Kyoudai

Space Brothers

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Alternative Titles

Synonyms: Uchuu Kyodai
Japanese: 宇宙兄弟
English: Space Brothers
German: Space Brothers
Spanish: Uchuu Kyoudai: Space Brothers
French: Space Brothers
More titles


Type: TV
Episodes: 99
Status: Finished Airing
Aired: Apr 1, 2012 to Mar 22, 2014
Premiered: Spring 2012
Broadcast: Sundays at 07:00 (JST)
Licensors: Sentai Filmworks
Studios: A-1 Pictures
Source: Manga
Genre: ComedyComedy
Themes: Adult CastAdult Cast, SpaceSpace, WorkplaceWorkplace
Demographic: SeinenSeinen
Duration: 24 min. per ep.
Rating: PG-13 - Teens 13 or older


Score: 8.491 (scored by 5240052,400 users)
1 indicates a weighted score.
Ranked: #1352
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.
Popularity: #1219
Members: 193,035
Favorites: 3,842

Available At


Streaming Platforms

Ranked #135Popularity #1219Members 193,035
Add to My List
Episodes: /99


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]


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Episode Videos

Related Anime

Characters & Voice Actors


Nagai, Kouji
Producer, Planning
Watanabe, Ayumu
Kobayashi, Katsuyoshi
Sound Director
Ishii, Toshimasa
Episode Director, Storyboard


Opening Theme

Apple Music
Amazon Music
Youtube Music
1: "Feel So Moon" by Unicorn  (eps 1-13)
2: "Eureka (ユリーカ)" by Sukima Switch (eps 14-26)
3: "Yume Miru Sekai (夢見る世界)" by DOES  (eps 27-38)
4: "Small World" by Fujifabric (eps 39-51)
5: "Kienai E (消えない絵)" by Magokoro Brothers (eps 52-64)
6: "Crater (クレーター)" by Merengue  (eps 65-75)
7: "HALO" by tacica  (eps 76-87)
8: "B.B" by THE Yatou (eps 88-99)

Ending Theme

1: "Subarashiki Sekai (素晴らしき世界)" by Rake  (eps 1-13)
2: "Kokuhaku (告白)" by Angela Aki  (eps 14-26)
3: "Tete (テテ)" by Akihisa Kondou (eps 27-38)
4: "Goodbye Isaac (グッバイ・アイザック)" by Motohiro Hata (eps 39-51)
5: "BEYOND" by Miho Fukuhara (eps 52-64)
6: "Yozora no Taiyou (夜空の太陽)" by Flower Companyz (eps 65-75)
7: "New World" by Kasarinchu  (eps 76-87)
8: "Anata ga Ireba OK!" by Serena  (eps 88-99)


Jul 22, 2023
Space Brothers is an anime series about two brothers who both dream of becoming astronauts and going to space. The story follows them as they work towards their dream, and it also explores the themes of friendship, determination, and hard work. I think it is a really heartwarming and inspiring series, and I definitely recommend it to anyone who is looking for an uplifting anime to watch.

The series is a really well-made that has a lot of heart, humor, and emotional moments. I enjoyed watching both main characters grow and learn throughout the series, and I like how their journey is not just about going ...
Aug 15, 2020
Mixed Feelings
First the positive side of things is the anime is very well researched , the amount of work put by the manga author is just incredible. Its amazing to see how realistic these depictions are.

If you are not bothered by the story or characters and are just interested in space then this anime is for you.

But as for me the anime is painfully average despite having good production and realistic depiction of NASA and how they work and look.
The main problem for me lies in the story and character writing, which is way too one dimensional.

The premise for the story is great where the ...
Jun 19, 2022
Quick review with big super spoil !!

- at the beginning the story evolved quite fast and you'll think "wow 99ep , it's gonna be a wonderful adventure who will end on Mars ... or the Moon at least ... very far from the control room... SIC

- after a very good start, one of the most promising, around ep 21, you'll start to think, " there's way to much the same flashback " but it's ok !
and the story start to spend to much time on support characters, and then more boring drama on support character, if fact you start to ...

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