Skip to main content

Home
Type
- TV Series
- Movies
- OVAs
- ONAs
- Specials
Genre
- Action
- Adventure
- Avant Garde
- Award Winning
- Boys Love
- Cars
- Comedy
- Dementia
- Demons
- Drama
- Fantasy
- Game
- Girls Love
- Gourmet
- Harem
- Historical
- Horror
- Isekai
- Josei
- Kids
- Magic
- Mahou Shoujo
- Martial Arts
- Mecha
- Military
- Music
- Mystery
- Parody
- Performing Arts
- Police
- Psychological
- Racing
- Romance
- Samurai
- School
- Sci Fi
- Seinen
- Shoujo
- Shoujo Ai
- Shounen
- Shounen Ai
- Slice of Life
- Space
- Sports
- Super Power
- Supernatural
- Suspense
- Thriller
- Vampire
Features List
Anime Name
EN JP

Search anime

Type

TV Series
Movies
OVAs
ONAs
Specials

Genre

Action Adventure Avant Garde Award Winning Boys Love Cars Comedy Dementia Demons Drama Fantasy Game Girls Love Gourmet Harem Historical Horror Isekai Josei Kids Magic Mahou Shoujo Martial Arts Mecha Military Music Mystery Parody Performing Arts Police Psychological Racing Romance Samurai School Sci Fi Seinen Shoujo Shoujo Ai Shounen Shounen Ai Slice of Life Space Sports Super Power Supernatural Suspense Thriller Vampire

Features List

Top Airing
Most Popular
Most Favorite
Completed

EN JP

Anime Name

Home
TV
Space Brothers
Episode 21

List of episodes:

1 Little Brother Hibito and Big Brother Mutta 2 My Shining Star 3 The Man with the Advantage and the Running Female Doctor 4 Next to Hibito 5 Days of Missing 6 Et Cetera in My Head 7 Dear Hibito 8 Smoky Heaven 9 Individual Resolve 10 Running Bus 11 Trapped Rivals 12 My Name Is Itou Serika 13 3-D Ant 14 Broken Glasses and the Sole of the Foot 15 Let's Talk About Space 16 Alarm, but No Clock 17 The Culprit Is in the Room 18 Roo-ra! Kenji! 19 The Day Before Goodbye 20 The Worst Possible Punishment 21 A Long-Awaited Glimpse of the Sky 22 Working on the Dream 23 Father, Son, and Mutta Claus 24 The Worst Possible Interviewer 25 Sonic Little Brother Training Big Brother 26 Painful Interview 27 One Question 28 Miracle of Doha 29 Night Before Launch 30 Dog, Old Man, and Alexander 31 Rocket Road 32 A Private Place 33 Moon Rabbit 34 Pug and Hug on a Moonlit Night 35 From the Little Corner of a Big Facility 36 Dancing Astronaut 37 Two Men in the Park 38 Eleventh E-mail 39 Lunar Illusions 40 Heaven and Hell 41 Eighty Minutes to Live 42 Hibito's Choice 43 Brian 44 Three Astronauts 45 Five Blue Rangers 46 Number One Restless Guy 47 The First Promise 48 Always Have a Pedometer in Your Heart 49 Nitta the Leader 50 Nitta and Mutta 51 Living Stone 52 A Big Brother Should Always... 53 Stand on the Moon Together Alive 54 Do I Have Good Luck? 55 Distant Goal 56 Promise to Drink 57 An Engineer's Switch 58 Earnest Failure 59 Promise Sign 60 Sea Diver and Space Diver 61 Those Who Wait for Hibito 62 Those Who Dream Far 63 Young Excitement 64 Piece of Cake 65 Wheelchair Pilot 66 Two Notebooks 67 Deneil-ized 68 Two Keyboards 69 Next to Hibito 70 Determination to Give Up 71 Rehearsal 72 Hibito's Disorder 73 A Road on the Roadless Moon 74 Magic Trick 75 My Hands 76 Olga 77 An Astronaut's Daughter 78 Out of Time 79 Olga, Hibito, and Gagarin 80 Secret 81 Worst Enemy 82 Space Family 83 Kenji and I 84 Supandaman 85 On the Moon 86 For Tomorrow 87 To the Place Where I Belong 88 Pretty Dog 89 Last Words 90 A Small Note and a Big Lucky Charm 91 How to Help Hibito 92 Lonely People 93 In the Corner of My Heart 94 Exciting Teamwork 95 Our Future 96 Astronaut and Father 97 Won't Go Away 98 The Ultimate Astronaut 99 Life Changes, Promises Don't

Back to Details

Space Brothers

Space Brothers Episode 21

Now playing: Episode 21

Server not working? Switch to another one.

SUB:

Prev Next

Space Brothers Episode 21

Space Brothers Details

TV 8.3 SUB Comedy Sci-Fi Slice of Life

Home
Browse
Schedule
A-Z List

Hianime is an indexing platform for anime that is already publicly available online. We do not store, upload, or modify any media files — every episode plays from an independent third-party source, and we claim no ownership of that content.

© 2026 Hianime. All rights reserved.