Twin Spica (2003)

Original title: ふたつのスピカ

Twin Spica is a Japanese seinen manga series written and illustrated by Kou Yaginuma. The "realistic, slice-of-life science fiction series" tells the story of a group of Japanese high school students training to become astronauts in the early 21st century after the country's first human spaceflight launch ends in a disaster that causes many civilian casualties.