[[quoteright:350:http://static.tvtropes.org/pmwiki/pub/images/spacebros_1311.jpg]]
[[caption-width-right:350:Let's go to Space, Brother!]]

This is a story about two brothers: Mutta and Hibito Nanba. Mutta seems to be kind of an [[BornUnlucky unlucky guy]], and Hibito could be considered [[BornLucky much luckier]]. When they were kids, they started to get interested in space, and after seeing a UFO one fateful night, they make a vow to one day become astronauts...

...However, almost 20 years have passed since that night. And while Hibito is the one who had actually pursued part of their dream and become an astronaut for JAXA ([[UsefulNotes/{{JAXA}} Japan Aerospace eXploration Agency]], Japan's UsefulNotes/{{NASA}} equivalent), Mutta, on the other hand, decided to work as a {{salaryman}} in a car company.

After an incident (headbutting his boss after said boss talked crap about Hibito) that cost him his job, and since his younger brother is about to go on a mission to the Moon, Mutta remembers the dreams both of them had in their childhood, and being newly motivated he decided to [[GoalInLife pursue them too]], now wanting to get ahead of Hibito, believing in the philosophy of ‘the older brother should always be ahead of the younger one’.

Uchuu Kyoudai, also known as ''Space Brothers'', is a seinen series made by Chuuya Koyama, and has been nominated in 2009 and 2010 for the Manga Taishou, and won as Best General Manga at the 56th Shogakukan Manga Awards and at the Kodansha Manga Award (alongside Sangatsu No Raion) in 2011.

An anime adaptation started being aired in [[Spring2012Anime April 2012]], and a live action movie also came out in May 2012, starring Shun Oguri and Masaki Okada. SentaiFilmworks has recently announced that they acquired the [[http://www.animenewsnetwork.com/news/2012-07-01/sentai-filmworks-licenses-space-brothers-tv-anime license]] to distribute the anime version and it can also be seen through [[http://www.crunchyroll.com/space-brothers Crunchyroll]].

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!This series contains the following tropes:
* TheAce: Hibito (not as a kid) has a habit of being better than everyone at everything. He's not humble.
* AdaptationDistillation: The live action movie, of course. Mostly because it needs to fit the two hour frame and it just lifts up relevant happenings from the first 10 volumes concerning the Nanba brothers.
* AmazinglyEmbarrassingParents: Hibito and Mutta's parents. Especially their mom.
* ArtisticLicenseMusic: In the anime during a barbecue cook-out, Hibito is playing his guitar... but it sounds like a banjo. In every other scene with his guitar, however, it sounds perfectly fine.
* BadBoss: Mutta's boss tried to sabotage his chance to become an astronaut because of the headbutt incident.
* BigBrotherInstinct: Mutta to Hibito, in that he strives to surpass his little brother, as he thinks it should be.
* BigEater: Mutta is inevitably thinking about Serika during key moments... Serika is inevitably thinking about food.
** GrowlingGut: Her stomach agrees.
* BrickJoke: Deneil Young refers Mutta sometimes as Alexander. Mutta thinks it's because he is being senile or something. Come a lot of chapters later, when [[spoiler:he is already in Houston training to be an astronaut, and a man with an afro, almost same height as him appears, that is Alexander]].
* BlandNameProduct: The manga sometimes avert this, with some real locations... even Mutta lampshades this when he first met Deneil...
--> '''Mutta''': "How can you trust someone with a Rolax watch?"
* BlunderCorrectingImpulse: Double subverted. Nanba's team is assigned an engineer for a rover design competition that has to do with their astronaut training. The engineer, Pico Norton, thinks they don't have a chance to win and doesn't want to help. You expect he'll help after being impressed by Nanba's ideas for the rover, but then it turns out he helps because they were going to screw up setting up the parachute that delivers the rover.
* BreakingTheFourthWall: Though it doesn't happen so much in the anime series, in-series JAXA's director Nasuda is the one who will be breaking it.
* TheCameo: Buzz Aldrin appears in the movie adaptation [[spoiler:taking the same role as Deneil Young has in the series]], and Japanese astronaut Akihiko Hoshide provided his voice in the 31st episode from the anime, recorded and performed from space. Also, creator Chuuya Koyama provided his voice in an extra character.
* CanineCompanion: Hibito has a pug named Apo, which Mutta constantly looks after.
* CharacterDevelopment: And HOW.
** Especially during the Third Exam arc for Furuya (who originally was presented as a {{jerkass}}) and [[CoolOldGuy Fukuda]].
* DancingTheme: The second opening sequence.
* DeathIsDramatic: Brian Jay and his crew's death deeply affect much of the cast.
** [[spoiler: Rick's death for Vince and Pico.]]
* DevilsAdvocate: Kenji calls himself this trope.
* DisappearedDad: Fukuda is this to his daughter.
** This is one of Kenji's fears towards his daughter, Fuuka, if he is going to be absent for so long.
** Serika's dad succumbs to ALS.
* DramaBomb: People often forgets that this story is not only about two brothers trying to be astronauts, and though it's a bit light-hearted with the comedy or the comedy antics where Mutta is involved, it's still a ''seinen'' story, there are obstacles around, and of course, drama occurs.
** Especially, the author gives a casual reminder that AnyoneCanDie in space (alongside the mission or in return) such as what happened with Brian Jay [[spoiler:or what happened to Hibito, getting stranded in the Moon for hours and almost dies of suffocation, leading him to develop a panic disorder/PSTD]].
** [[spoiler: Later in the series, it is revealed that Sharon has ALS. The same disease that StephenHawking has in real life, and that it took Serika's dad to his death. How could you feel when the person you admired the most and gave you constant support is in the veil of getting paralyzed and possibly dying?]]
* EveryoneCanSeeIt: Mutta acts to obvious when he is around Serika. Except [[ObliviousToLove Serika]], of course.
-->'''Furuya''' ''(in a message text sent to Mutta)'': ''"Stop staring at Itou-san. Now the whole country knows."''
* EverythingsBetterWithMonkeys: Furuya looks a bit like a monkey, he even studied monkeys as well.
* ExpressiveHair: Where some men wear their hearts on their sleeve, Mutta apparently keeps his in that afro.
* TheFool: Mutta is a mild case; he's certainly not ''dumb'', but by all objective measures he's a weak candidate for astronaut status. Nevertheless, his passion and optimistic determination in the face of adversity, as well as his uncanny knack for acting on gut feelings in ways that turn out to be exactly the right thing to do at the right moment, eventually win over even the most demanding and skeptical of his critics.
* FunnyAfro: Mutta, his mom, and Alexander.
* GratuitousEnglish: Since it's a story about going to space and being astronauts, the series has to reccur too much in this, especially since most of the time the series has a focus on the USA. Sometimes, not everything is accurate, however.
* GreenEyedMonster: Mutta feels like this at times about his little brother. Not only because [[spoiler: he is going to go to the moon earlier than him, to the point that he wasn't surely happy or not about him when the shuttle was going to happen]], but he is just a different person than he is. But he is an aversion of this because, at the end, they are brothers.
* GrumpyBear: Furuya and Pico.
* InSeriesNickname: Mu-kun/Mutt-kun for Mutta, Ya-San for Furuya. Hibbit and Hibichov for Hibito (the latter used [[spoiler:when he is in Russia]].
* {{Jerkass}}: Yamato, who purposely brings up the crash in order to demoralize Kenji.
** Pico and Vincent's highschool guidance counselor, happily shoot down their dreams of getting into space.
* KansaiRegionalAccent: Furuya talks in Kansai-ben, and they even mistake him being from Osaka, but he is really from Kyoto.
* LateArrivalSpoiler: Unless you have read the manga by the time the anime was released... you sure wouldn't guess that the alternative cover of the 3rd ending single is in reality this to [[spoiler: the arc where Hibito and Damian got stuck in the Moon crater after looking for the 'flash' this object reflected. And, though Mutta doesn't appear in this in the series... that Hibito is ''suffering'']] making it a straight example of this... by many couple of months before this arc happened in the anime series.
** The Unicorn PV of 'Feel So Moon', due to being recorded around the time volume 18 was recently released. Of course, the video is almost spoiler free (it's mostly Mutta doing constant training).
** If you've seen any promotional material after Hibito's trip to the moon then you know that [[spoiler: Hibito didn't suffocate after his crash in a crater.]]
* LiveActionAdaptation
* LoadsAndLoadsOfCharacters: Has over 50 characters, with almost all of them having some level of {{Backstory}} and CharacterDevelopment.
* LoveAtFirstSight: Mutta towards Serika, since the first phase of the JAXA exam.
* ManlyTears:
** Mutta when Hibito's launch is successful.
** Hibito after Brian Jay's death
* MayDecemberRomance: Olga doesn't ''really'' give up the possibility of ''dating'' Hibito, despite him being 15 years older not comfortable with the idea. However, it's vague whether Hibito returns her feelings or not. Either way, he promises himself that he will return to Russia when he's [[spoiler: recovered from his panic disorder]].
* MeaningfulName: Apo is named as that because of the Apollo missions.
** The name of the series in fact has a lot of meaning besides mainly focusing on Mutta and Hibito. It's not only the Nanba brothers, but the Jay siblings also made a promise for going to space [[spoiler:although Brian didn't survive]] and it could also apply to Reiji Nitta and his [[spoiler:{{hikikomori}}]] brother, Kazuya; and as well of [[spoiler:Pico, Vincent and Rick (despite not being blood related, but shared the same space passion)]].
** Director Nasuda's last name is this, 'Nasuda' is the proper Japanese pronunciation of NASDA (National Space Development Agency, one of JAXA's predecessors).
* MemeticMutation: In universe. Hibito's first words on the moon ("Yay!") is repeated world-wide and accepted as his CatchPhrase in Japan. His anime counterpart, Mr. Hibbit, says it every other sentence.
* MistakenForGay: Mutta in a [[CrowningMomentOfFunny hilarious]] moment when he tries to [[spoiler: confess his love for Serika by drawing her a heart in the sky, but Butler sees it instead and takes it the wrong way.]]
* MohsScaleOfScienceFictionHardness: Is a 5.5 with a few new and reasonable developments (space suits that can fit a wider height range, a permanent lunar base being built and a proposed radio telescope to be built on the moon), the only things that violate this is Amanti supposed psychic abilities.
* MysteriousWaif[=/=]OracularUrchin: Amanti. Up until what has been shown in the anime, we know she is a Hindi woman who is training to be an astronaut, but she also knows vague personal info about the present or future of her partners. When Mutta asks her about his future, she does see something unfortunate that will happen to him. [[spoiler:For starters, later, he thought it was the fever he got in the middle of the first phase of the survival training, but it wasn't. Amanti then, tells him that he will become so sad and lonely because of something that is going to happen to a close and dear person for him. It is Sharon, who is diagnosed by a degenerative disease. Serika reveals that it's ALS, the same disease that claimed her father's life]]
* TheNapoleon: Basically, Furuya's complex. [[spoiler: He was really dissapointed when he was a teenager when he found out that he was much shorter than the height limit to become an astronaut, and after a change in this rule, he started being so proud after being even selected in the Exams]].
* NearDeathExperience: [[spoiler: Happens to Hibito on the moon. He even develops a panic disorder (PTSD) after the incident.]]
* ObliviousToLove: Serika, Serika, Serika. Everyone knows that Mutta has a thing for Serika, ''except'' Serika.
** Hibito. Olga has a crush on him, but he either doesn't realize it or is just [[ObfuscatingStupidity ignoring]] the situation because of the age difference.
* OccidentalOtaku: Lowry is this for Japanese culture. Olga might be this and an OtakuSurrogate, depending on how deep her enjoyment of anime runs.
* OutOfFocus: Often one of the Namba brothers is subject to this, usually to support the other's plotline or a minor character's backstory.
** Straight following up when the preliminary JAXA selection exams happened. The focus changed mostly towards team A and B when they become isolated, until 9 of those people were selected to become the final candidates.
** It also happens again to the people who weren't chosen in that next phase, who had a chapter dedicated to each of them that served as background to keep following their dreams to go and/or help that part of the industry [[spoiler: like Furuya in the former, and Fukuda in the later)]].
** It happens when [[spoiler: several parts of the formal training of the international candidates when they are divided into groups. You just know that the author will focus in the main characters' team several times, especially when they are being held into selected who is going into what mission]].
* PosthumousCharacter: Brian Jay gets quite a bit of development namely as a bit of a mentor to Hibito, and other important developments, such as in Pico.
** [[spoiler:Rick counts as well, being the main influence for Vince and Pico to keep following their dreams.]]
** We know Serika's dad, mostly because he is her inspiration on going into space, and he was long dead when she decides to go into space.
* PunnyName:
** Ozzy, the old neighbor of Hibito in Houston, is pronounced 'ojii' in Japanese, it's very close to "''old man''".
** Freddie Saturn, one of Hibito's comrades is probably called like that thanks to Freddie ''Mercury''.
** His brother, Johnny, is a reference to John Lydon, known in the punk world as Johnny Rotten. Even his kids look like punks!
* PursueTheDreamJob: Mutta as well as pretty much every other character in this series.
** The same could be applied to almost everyone: Serika wanted to pursue space because she wanted to develop new cures for diseases, for example.
* RunningGag:
** The recurring theme of luck (bad or good) in Mutta's thoughts about his own doing in his way to become an astronaut.
** Nanba-papa and his ''awesome'' shirts reflecting in words not only some obvious stuff (as ''Pop'' or ''Pajama'') but some of his own thoughts.
* SceneryCensor: Especially on Mutta, like in episode 2 (when he was taking a bath and imagining with space) and 3 (when he took the medical exam).
* SecretTestOfCharacter: It's frequently applied to the characters when they are focused to know how add pressure, tension and how they would work in teams rather than alone [[spoiler:or in some cases, more as like competition with each other]].
** It's less secret and more test when Mutta and cia. were going to be preselected. Three tests were administered to access the capabilities of the candidates, the last one one focused on the candidates' characters and ways of handling situations. All of this to determine how they would work in team.
** [[spoiler:In the case of pulling everyone into competition, around chapter 150, it's more applied to the teams of astronauts that would be training and performing tasks in a simulator underwater for going to the moon... but with the defining situation that only one of each one of those groups being selected to go to the Moon... and it would affect Mutta and Kenji's friendship in the process... since they are in the same team.]]
* ShipperOnDeck: Ena towards Mutta and Serika.
* ShoutOut: Numerous references to space movies, especially those based on real life.
** In particular, the lung capacity test scene is a shot-for-shot recreation of a scene from Film/TheRightStuff, even down to the nurse administering the test.
** Episode 18 has Mutta [[spoiler: receiving a green card]] with instructions to scream twice every day until the test ends. The first time he screams like MichaelJackson, the next like BruceLee.
*** MichaelJackson is referenced again when Mutta has an ImagineSpot of what Makabe might receive as a green card.
** Mutta was born in the day that happened the Agony of Doha, in 1993. When Hibito was born, the first single of [[PuffyAmiYumi Puffy]] was already released, in 1996.
** In episode 23's preview, the final line of Mutta, 'I will become Santa Claus!' sounds in a pretty... [[Manga/OnePiece pretty familiar]] tone of excitement.
** The fourth opening of the series is a huge homage to ''Le Voyans dans la Lune'' by George Méliès, the first known science fiction film, and based in that idea of 'how it would be when the man reach the moon'. The melody from that opening's song, meanwhile, takes a number of cues from "[[https://www.youtube.com/watch?v=ryrEPzsx1gQ Telstar]]", which was composed to commemorate the launch of the world's first telecommunications satellite.
** A more particular example of space movies' and actual life reference is how much influenced is the past of Pico and Vincent [[spoiler:(and more importantly, Rick)]] on ''Film/OctoberSky'' and Homer Hickam Jr.'s autobiography, ''Rocket Boys''. Heck, the boys make a shout out to him directly since he also was 'born on a little (and miner) town' too.
** Deneil Young appearance is referenced and lampshaded as a certain pig pilot of ''Anime/PorcoRosso''.
** One of the astronauts in the ocean-moon simulator is named ''George Love''... with rather feminine eyes, he maybe a shout out to both musicians and singers George Michael and Courtney Love.
** The engineering team that are developing a new rover are direct, DIRECT physical ''dopplegangers'' of the {{Film/Ghostbusters}} cast.
*** Hell, pretty much all the very minor characters introduced in America seem to be dopplegangers.
* ShowWithinAShow: There is an anime (yes, an anime) focusing in the adventures of ''Hibbit'' as an astronaut. Of course, it's based on Hibito being mostly the new 'hero' of Japan's media and his arrival to the moon... much to his concern (Hibito was made into a rabbit because he jumped a '''lot''' in his first steps). It's also animated as shorts in the anime adaptation of the series. In-universe, it's explained that the anime series surpassed in ratings at first against ''Sazae-san''... the most long-running anime series in Japan and the ''entire world''.
* SiblingYinYang: Mutta is a cautious, pessimistic (before CharacterDevelopment) and studious person. Meanwhile, Hibito is carefree, positive and quite happy with not going by-the-book (or even studying it, for that matter). However both are very smart and capable people.
* ShownTheirWork: Besides the obvious influences of other space-related media shown in movies, Chuuya Koyama DID actually go to Houston to do research for his work. The locations in the series are portrayed accurately, and the astronaut testing and training presented in the show is actually what current astronauts go through.
** Case in point: NASA Desert RATS and NEEMO are real training programs [[note]] although they've stopped due to lack of funding [[/note]]. Mission control scenes are replicated as closely to the real life as possible, even including all the mission logos and the ''NASA flag'' [[labelnote:*]] It is a federal felony without the permission of associate administrator, meaning the production team received permission from the ''third/second highest NASA leader''. [[/labelnote]]
* SureLetsGoWithThat: Mutta is celebrated and even given wide news coverage for supposedly taking down a robber, but in reality [[spoiler:Mutta was just chasing after Apo and the saving part happened by chance]]. He doesn't correct the newscasters because he wants to [[DistractedByTheSexy impress a few American ladies in the audience]].
* TheStoic: Nanba-papa. He rarely smiles or show affection and he's snarky even to his wife. But, as it also happens, he loves his sons so much... [[spoiler: he is way too dubious about how is Hibito going to arrive at the moon, and after he lands, it's one of the first times you see him proud about the fact]].
** Azuma could also count because he doesn't display so much feelings about his comrades... however, he has a reason to do it: It's about his own understatement of his being.
** Vincent as well having the same cool and calculated expression on his face at all times. Pico asks him, if he forgot how to use his facial muscles.
* {{Trigger}}: [[spoiler: After Hibito's near-death experience on the moon, being in a pressure suit is a serious trigger for Hibito. He has a severe panic attack anytime he's in one.]]
* TryingNotToCry: Happens to many characters over the course of the series.
** Mutta when he [[spoiler: finds out that Hibito is OK, as well as the conversation he had with him afterwards.]]
** Hibito when he thanks Mutta for [[spoiler: helping save his life on the moon.]]
** Serika when she finds out Mutta is holding a signature drive to [[spoiler: save the ISS rather than demolish it.]]
* TwentyMinutesIntoTheFuture: The story happens in the 2020s
* UseYourHead: Mutta headbutts his boss, which subsequently gets him fired from his job at a car company.
** This isn't the first time he has used this, though. Back when Mutta and Hibito were kids, he tried to use this to defend his little brother from a bully, even though Hibito was physically stronger than him.
* ViewersAreGoldfish: The executives decided to devote three entire episodes in a row to recapping the recent events... much to the chagrin of everyone who was already following the show. The recap episodes airing coincided with a change in timeslots in Japan, so theoretically they were targeted to get new viewers at that timeslot.
* WeAllDieSomeday: It's true that when someone becomes an astronaut has to think that someday the person in question would die in the middle of the space if something goes wrong. It's natural that the space agencies ask their astronauts to do a will before going to space. Everyone in the Exams arc are dubious to sign the agreement to confirm that if they get selected they are acknowledging this.
** Especially Mutta, after reading the will of Hibito.
*** In fact, [[spoiler: after being selected to the Exam phase in the States, Azuma asks Mutta if he did have the resolve to die. To which he first [[NotAfraidToDie lies]], and then he confesses that he really wants to keep living. Not only HE responded like that, but Hibito also did and also did Azuma to Brian Jay in the past]].
* YoungerThanTheyLook: Olga Tolstoy. It's lampshaded by her family, giving she is 15 years old, that her make up makes her look older.