Edit: get a better release here (digital): https://nyaa.si/view/1259024
First 22 volumes are from Crunchyroll, the others through 36 are compiled by me, with added covers. The last volume is bigger in size, because it has chapters from danke's higher quality releases. The single chapters aren't enough to complete volume 37 (which is the latest volume released), but I've included in the torrent. I don't have chapters 345-353 (not "released"?).
By Chuya Koyama
Two brothers looked to the starry skies as children and made a promise … Now, in the year 2025, the younger brother, Hibito, is carrying his out. He is an astronaut who has been selected as a crew member for mankind’s first long-term base on the moon. Meanwhile, the older brother, Mutta, has just been fired from his job and is unemployed, but decides to trust himself just one last time. A text message from Hibito sends him applying to be an astronaut too and shooting for the stars … The official Space Brothers manga is ready