Uchuu Kyoudai
Space Brothers
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Uchuu Kyoudai

Alternative Titles

Synonyms: Uchu Kyodai
Japanese: 宇宙兄弟
English: Space Brothers
French: Space Brothers
More titles


Type: Manga
Volumes: Unknown
Chapters: Unknown
Status: Publishing
Published: Dec 6, 2007 to ?
Genres: Award Winning Award Winning, Drama Drama, Sci-Fi Sci-Fi
Themes: Adult Cast Adult Cast, Space Space, Workplace Workplace
Demographic: Seinen Seinen
Serialization: Morning
Authors: Koyama, Chuuya (Story & Art)


Score: 8.761 (scored by 84578,457 users)
1 indicates a weighted score.
Ranked: #442
2 based on the top manga page. Please note that 'R18+' titles are excluded.
Popularity: #488
Members: 36,035
Favorites: 1,457

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Ranked #44Popularity #488Members 36,035
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Space Brothers
Volume 1


"A big brother must always stay ahead of his younger brother. That is my responsibility as the older sibling"—these are the words that have always motivated Mutta Nanba to try his best when it came to his younger brother Hibito. So naturally, in the summer of 2006 when the Nanba brothers witness something strange in the night sky, Hibito declared that he would become an astronaut and travel to the Moon, while Mutta countered with the affirmation that he would go to Mars. That was the promise they made to each other.

Now in 2025, while Hibito is working with NASA and preparing to become the first Japanese to land on the moon, Mutta has been fired from his job in an automotive development company. Having difficulty finding another job, Mutta is given a lifetime opportunity when he receives a letter from JAXA—the Japan Aerospace Exploration Agency—telling him that he's been accepted to participate in the next astronaut selection. As if fate has given him a chance to fulfill the promise he made all those years ago, Mutta undertakes the difficult challenge of going to space.

[Written by MAL Rewrite]


Uchuu Kyoudai was nominated for the 2nd and 3rd Manga Taisho Award in 2009 and 2010. In 2011, the series won the 56th Shogakukan Manga Award (shared with Yamikin Ushijima-kun) and the 35th Kodansha Manga Award (shared with 3-gatsu no Lion), both in the general category. The series also won the Reader Award of the 18th Tezuka Osamu Cultural Prize in 2014.

The series has been simulpub in English as Space Brothers by Crunchyroll since October 30, 2013. Kodansha Comics USA has been releasing e-books of the series since November 3, 2015.


Nanba, Mutta
Nanba, Hibito
Itou, Serika
Makabe, Kenji
Young, Deneil
Bold, Vincent
Kaneko, Sharon
Jay, Brian
Norton, Pico


Jul 21, 2022
Preliminary (236/? eps)
This manga deserves a lot more attention than it has had so far. I didn't find a single thing that wasn't right; everything, from the story to the characters, is so well balanced and portrayed with a relaxed yet exciting narrative pace: sometimes funny, sometimes exciting, sometimes touching, sometimes frustrating; all the emotions that the protagonists and the characters around them feel are so realistic that even those who follow their stories can only feel them in turn. A truly complete story, which involves you and takes you inside; one that, once finished, leaves you with a sense of nostalgia and loneliness because you miss ...
Jul 23, 2020
Preliminary (344/? eps)
I learned so much from this manga. I started reading it on crunchyroll last week until chapter 344 and there's only one thing I could say about this manga; A MASTERPIECE.
The characters were so funny, the art was so great and the story was so touching and so relatable I often shed tears while reading it.

Imma share what I learned from this manga;
Sometimes it's hard to keep going when everyone makes fun of you and your dreams, like you just want to give up and you think it's better to just follow what's common in society these days .
But in this manga I learned ...
Oct 20, 2016
Preliminary (281/? eps)
I may be overreacting if I would say that this is one of the most beautiful and funniest manga I've ever read.

The story takes longer than other mangas, but this what makes it the most beautiful. You will see the struggles of both brothers, and the other characters. It's very inspiring, in a way that it is light, you can read it anytime or best to read it in public because you will be captivated in the story and people surrounding you will not matter (tried it several times.) You will be absorbed and laughed in the story. Also, the decisions that each characters do ...

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