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]
Details
Where to Watch Space Brothers?
Space Brothers is available to watch online free on various streaming platforms. Comedy, Seinen anime with 99 episodes in HD quality. Check Crunchyroll, Netflix, Disney+, Amazon Prime for availability.
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Frequently Asked Questions
Where can I watch Space Brothers online for free?
Space Brothers (宇宙兄弟) is available on streaming platforms including Crunchyroll, Netflix, Disney+, Amazon Prime. Comedy, Seinen anime with 99 episodes. Check each platform for availability.
How many episodes does Space Brothers have?
Space Brothers has 99 episodes. Type: TV. Status: Finished Airing. Studio: A-1 Pictures.
Is Space Brothers worth watching?
Space Brothers has a rating of 8.48/10 on MyAnimeList based on 56,024 votes. Genre: Comedy, Seinen. Popularity rank: #1320.
Will there be a new season of Space Brothers?
Current status: Finished Airing. Check for announcements about new seasons.
What is Space Brothers about?
Space Brothers (2012) is a TV anime in the Comedy, Seinen genre by studio A-1 Pictures. Source: Manga.
Summary - Watch Space Brothers Online
Space Brothers (宇宙兄弟) is a TV anime in the Comedy, Seinen genre with 99 episodes rated 8.48/10. Watch Space Brothers online free with subtitles on Crunchyroll, Netflix, Disney+, and more. Studio: A-1 Pictures. Best anime 2026. Updated: 09/04/2026.