[KoD] and [Navic] are building solid propellant motors using sugar and potassium ... the break is proof of the dangers involved in this hobby. Testing the engine thrust with a bathroom scale ...

Many things need to come together to launch AND land a rocket on standard hobby-grade solid fuel rocket motors. A core component is stabilization of the rocket during the entire flight ...

However, like Ariane 6, the H3 rocket relies on low-thrust liquid hydrogen engines and must carry multiple solid rocket boosters ... Chinese firms are developing reusable rockets, their success ...