宇宙兄弟 [Space Brothers]

A long-running Japanese manga series from Kōdansha, Space Brothers follows two brothers who shared a childhood dream of becoming astronauts. The story primarily follows the elder brother, who rediscovers his ambition after his younger sibling is selected for a lunar mission. Written and illustrated by Chūya Koyama, the series is celebrated for its grounded, humanistic take on space exploration and the personal sacrifices required to reach for the stars.