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: 8.771 (scored by 80438,043 users)
1 indicates a weighted score.
Ranked: #382
2 based on the top manga page. Please note that 'R18+' titles are excluded.
Popularity: #482
Members: 34,863
Favorites: 1,466

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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.

Related Manga


Nanba, Mutta
Nanba, Hibito
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Young, Deneil
Bold, Vincent
Kaneko, Sharon
Jay, Brian
Norton, Pico


Jan 8, 2015
Preliminary (242/? eps)
This is one of the few mangas that I can describe as perfect. It's realistic with little touch of very hard SF. There are no idiotic ideas about astronaut recruitment. There is hard work, brutality of life, death, and yet it's still light and funny.

This manga is must read for everyone for everyone who likes topics of space and space exploration.
Aug 22, 2013
Preliminary (142/? eps)
I seriously did not think that I would rate 10 on all components.

Story: The storyline is realistic yet the author manages to inject so much twists and humour in it, making it absolutely enjoyable. It also helps that the manga introduces us to the world of space and I do feel slightly more knowledgeable after reading it! The manga is not draggy at all, and cliche is at its minimal.

Art: Not the kind that will make you go "Wow, so beautiful" or "Omg, he's such a bishie!" but I have to give credit to the consistency and dynamics.

Character: The main lead is so realistically ...
Jul 30, 2014
Preliminary (Unknown/? eps)
It's never too late to reach your dreams, that's what you can learn from this manga.
Uchuu Kyodai is one of the few mangas that can motivate my live, read this is more like reading graphic biography than reading manga.

The story tell us about an older brother named Nanba Mutta who want to become an astronout to follow his younger brother path, Nanba Hibito. I think the synopsis was enough to describe the main plot. The story develops every new characters are introduced but still focus on Mutta reaching his dream.

Like my word before, this is more like biography than manga because the characters more ...

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