They are both comedies that are set in one room about civilians who work in space. Neither drama is to be taken seriously or in any way scientifically accurate.
Both movies are about a parent living alone with their child who attends high school. Although the reason why each parent is alone is different, they have in common that every day, they prepare a bento lunch box for their child.
Both feature a mother whose husband is absent and who has to take care of a teenage daughter. Both are tough and inspirational.
In both, a lonely man falls for a blind woman but something from his past stands between them. Both are often bittersweet but end well.
In both movies, a space crew responsible for clearing garbage in space finds a girl that's connected to a secret.