Mighty Space Miners

At 12 years old, Nanbu Ushiwaka has never once set foot on Earth. Born and raised on the mining colony Tortatis — a rock in space run by the Planet Catcher Corporation — he's spent his whole life around drills, zero-gravity, and the kind of people who wrangle comets for a living. He wants to be one of them. That's the setup, and it's already more interesting than most sci-fi premises. Then a military satellite malfunctions during an operation to capture Halley's Comet, and suddenly Ushiwaka's coming-of-age story becomes a survival situation. The colony is in danger, and a kid who hasn't even passed his miner's test is caught right in the middle of it. What makes this two-episode OVA worth your time is how grounded it feels. The animation from Triangle Staff puts real care into the spacecraft, the space station interiors, the way bodies move in zero-g. It's not flashy — it's detailed. If you liked Planetes and its quiet, believable take on working life in space, this scratches a similar itch. Fans of They Were 11 will also recognize that tense, claustrophobic energy of people trapped in space with something going wrong. It's short, it's unfinished in the way a lot of 90s OVAs are, and it doesn't hold your hand. But as a slice of hard science fiction with genuine heart at its center, it's worth the two episodes.