4.487 out of 5 from 37 votes
When Mutta and Hibito were children, they made a promise to become astronauts together after spotting a UFO one night. Now adults, the duo's path couldn't have diverged more – Hibito is about to travel to the moon with NASA to help simulate the future exploration of Mars, and Mutta is unemployed, having recently headbutted his boss at an auto company. Still, the man can't shake his desire to surpass his younger brother, and soon, he becomes an applicant for Japan's JAXA space program. His ultimate goal, to get one step ahead of Hibito and go to Mars. But the path to becoming an astronaut is long and fraught with tests and challenges. Will Mutta and newfound friends Kenji and Serika manage to persevere and achieve their dream?
When Asumi was just a baby, Japan's first manned space rocket, the Lion, malfunctioned and crashed into her hometown of Yuigahama. The impact killed many of the townspeople and critically wounded the girl's mother, who lay in a coma for several years before passing away, having never regained consciousness. With the help and friendship of Lion-san, a mask-wearing ghost who claims to have come from the rocket, Asumi grew up focusing on her dream – to someday travel to space. Now a young adult, she is determined to beat the odds and attend the newly-formed Tokyo National Space School to achieve her lifelong goal. Alongside Lion-san's guidance and several new, dear friends, Asumi will try her hardest to touch the stars.
Two sci-fi/slice-of-life manga about charaters' quests to become astronauts. The main characters of each have dreamed of space since they were young, so flashbacks are fairly common. Both are mostly realistic, yet very optimistic about the future of space travel.