Space Brothers
宇宙兄弟
When they were young, the brothers Mutta and Hibito promised each other they would become astronauts. Now, in 2025, Hibito has followed his dream to become the first Japanese on the moon, but Mutta has just been fired from his job. His brother reminds him of their childhood promise, and Mutta decides once again to aim for space.
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Based on audience scoresWhere to stream Space Brothers
Streaming now in the United States on Crunchyroll, Plex, and Tubi TV.
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Frequently asked questions about Space Brothers
Where can I watch Space Brothers in the United States?
Space Brothers is available to stream on Crunchyroll, Plex, and Tubi TV in the United States. Streaming availability is provided by JustWatch and can change over time.
Can I watch Space Brothers for free?
Space Brothers streams free with ads in the United States on Plex and Tubi TV. A subscription is not required, though the service may ask you to register.
What are the ratings for Space Brothers?
Space Brothers scores 8.2 on The Movie Database and 8.2 on IMDb.
Who stars in Space Brothers?
Space Brothers stars Hiroaki Hirata, KENN, Masayuki Katou, Miyuki Sawashiro, and Masako Ikeda.
How many seasons of Space Brothers are there?
Space Brothers has 2 seasons and 99 episodes, and is ended.
How long does it take to watch all of Space Brothers?
All 99 episodes of Space Brothers add up to about 39 hours 36 minutes at roughly 24 minutes each. At two hours a night that is about 20 evenings; at four hours a day it takes about 10 days.
What network is Space Brothers on?
Space Brothers airs on Nippon TV and YTV, and is produced by TOHO, dentsu, and Kodansha.
What language is Space Brothers in?
Space Brothers is in Japanese, and its original title is 宇宙兄弟.
Ratings and streaming availability are aggregated from third-party sources; metadata from The Movie Database (TMDB), streaming data from JustWatch. This product uses the TMDB API but is not endorsed or certified by TMDB. Streaming availability checked September 2026.