Planetes, Book 4.1 by Makoto Yukimura

Set in a future where space travel is commonplace, the story delves into the lives of astronauts and space debris collectors as they navigate the challenges of their profession and personal lives. The narrative explores themes of ambition, isolation, and the human desire for connection amidst the vastness of space. As the characters confront both external and internal conflicts, they grapple with their dreams and the harsh realities of life beyond Earth, ultimately seeking meaning and purpose in their cosmic journey.