Space Brothers
A human drama about brothers Mutta and Hibito Nanba, who promise as children to become astronauts and pursue their dream of standing together on the Moon through setbacks and rigorous training.
- Genre:
- 宇宙 / ヒューマンドラマ / 職業
- Medium:
- Anime
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Space Brothers — Timeline12 events
Mutta and Hibito promise to become astronauts
Twelve-year-old Mutta and nine-year-old Hibito witness a UFO heading toward the Moon and vow to become astronauts together. Mutta declares that, as the elder brother, he will go ahead of Hibito.
Vol.TVアニメ 宇宙兄弟 第1話 弟ヒビトと兄ムッタCh. — The official Yomiuri TV Episode 1 synopsis states the date and ages. ↗
After losing his job, Mutta enters astronaut selection
While Hibito has become an astronaut, Mutta is fired from an automaker after head-butting his boss. A childhood recording revives the brothers' promise, and an application submitted by his family earns him passage to astronaut selection.
Vol.TVアニメ 宇宙兄弟 第1話 弟ヒビトと兄ムッタCh. — Official Yomiuri TV Episode 1 synopsis. ↗
Mutta's group enters the closed-environment test
After signing a waiver acknowledging the risk of death, Mutta joins Serika, Nitta, Fukuda, and Furuya in Team A. They spend two weeks isolated from the outside and must ultimately choose two candidates from among themselves.
Vol.TVアニメ 宇宙兄弟 第11話 閉じ込められたライバル達Ch. — Official Yomiuri TV Episode 11 synopsis. ↗
Mutta proposes rock-paper-scissors as a fair selection
In the final task of choosing two suitable astronauts from Team A, Mutta proposes rock-paper-scissors rather than eliminating teammates by scores. Recognizing that each member has a different kind of strength, the five accept his method.
Vol.TVアニメ 宇宙兄弟 第20話 一番酷い仕打ちCh. — Official Yomiuri TV Episode 20 synopsis. ↗
Hibito departs for the Moon aboard Mars One
After storm clouds clear, the launch proceeds and Hibito's CES-51 crew lifts off aboard Mars One. Mutta moves beyond his jealousy and watches his brother's straight path into space.
Vol.TVアニメ 宇宙兄弟 第30〜31話 犬とじじいとアレクサンダー／ロケットロードCh. — Official Yomiuri TV Episodes 30–31 synopses. ↗
Hibito becomes the first Japanese person to walk on the Moon
Hibito manually lands Altair and reaches the Moon with CES-51. Watched around the world, he leaps onto the lunar surface and becomes Japan's first moonwalker.
Vol.TVアニメ 宇宙兄弟 第33話 月のウサギCh. — The official Yomiuri TV Episode 33 synopsis states the date. ↗
Mutta passes astronaut selection
Hoshika summons Mutta to a park and tells him that JAXA will welcome him as an astronaut. Mutta, Serika, Kenji, Ena, and Nitta are selected as the five new astronaut candidates.
Vol.TVアニメ 宇宙兄弟 第37〜38話 公園におっさん2人／11件目のメールCh. — Official Yomiuri TV Episodes 37–38 synopses. ↗
The stranded Hibito is saved by Brian 3
After a buggy crash leaves him stranded in a ravine without oxygen, Hibito prepares to die. Guided by Mutta's deduction and Azuma's decision, the oxygen-producing rover Brian 3 reaches him and saves his life.
Vol.TVアニメ 宇宙兄弟 第39〜44話 月の錯覚〜3人の宇宙飛行士Ch. — Official Yomiuri TV Episodes 39–44 synopses. ↗
Mutta completes the Comeback Competition
Candidate Team E faces rain-soaked sponge tires during a rover-launch contest. Mutta proposes waterproofing them with silicone, completing the event while learning how ground teams support spaceflight.
Vol.TVアニメ 宇宙兄弟 第60話 海人と宇宙人Ch. — Official Yomiuri TV Episode 60 synopsis. ↗
Mutta's class is certified as astronauts
On Deniel's retirement day, Mutta's candidate class receives formal astronaut certification. Mutta finally draws level with Hibito and is recommended as backup crew for a mission eighteen months later.
Vol.TVアニメ 宇宙兄弟 第69話 日々人に並ぶCh. — The official Yomiuri TV Episode 69 synopsis states the date. ↗
Mutta proposes lunar-living improvements during NEEMO
At NEEMO, an underwater lunar-base analog twenty meters deep, Mutta devises an SEV cargo bed to cut transport time. After the telescope plan is canceled, he earns praise by proposing a solar-mirror system to bring daylight into the base.
Vol.TVアニメ 宇宙兄弟 第80〜86話 秘密〜明日のためにCh. — Official Yomiuri TV Episodes 80–86 synopses. ↗
Hibito pursues the Moon through Russia as Mutta becomes CAPCOM
Although he overcomes panic disorder from the lunar accident, Hibito's return remains blocked, so he leaves NASA to restart as a cosmonaut in Russia. Six months later, Mutta serves as CAPCOM for Vince's lunar mission.
Vol.TVアニメ 宇宙兄弟 第99話 人生可変、約束不変Ch. — Official Yomiuri TV Episode 99 synopsis. ↗
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