LEGO Technic | NASA Artemis Space Launch System Rocket 42221. This science-based set shows a rocket launch in 3 stages. Turn the crank to separate the solid boosters, core stage, upper stage, engine module, Orion spacecraft and launch-abort system. Developed with NASA and ESA, it includes 4 astronaut nanofigures, blue flame details and an information panel. With the rocket at the top, the model measures approximately 70 cm high, 16 cm long and 3 cm wide.