Experience the engineering behind a journey to the Moon with LEGO® Technic 42221 NASA Artemis Space Launch System Rocket. Developed in collaboration with NASA and the European Space Agency (ESA), this 632-piece model recreates the powerful Space Launch System designed to send the Orion spacecraft into lunar orbit. Turn the hand crank to watch the launch sequence unfold through three distinct separation stages, from the solid rocket boosters and core stage to the upper stage carrying Orion. Complete with four astronaut nanofigures, blue flame details and an information panel, this impressive 70 cm-tall model combines hands-on Technic engineering, space exploration and display appeal.

Key Features

• 632-piece LEGO® Technic set: Build a detailed model of NASA’s Artemis Space Launch System and explore the engineering behind a multistage rocket launch.

• 3-stage launch sequence: Turn the hand crank to activate a mechanical separation process that demonstrates the different stages of launch.

• Separating solid rocket boosters: The two boosters detach from the core stage as the first part of the launch sequence.

• Detachable core stage: Continue turning the crank to separate the rocket’s massive central core stage.

• Orion spacecraft: The final stage reveals the upper stage with its engine module, Orion spacecraft and launch abort system.

• Developed with NASA and ESA: Created in collaboration with NASA and the European Space Agency to help inspire an interest in space science.

• 4 astronaut nanofigures: Includes four tiny astronaut figures to complement the Artemis-themed display.

• Blue flame details: Brick-built exhaust effects help capture the dramatic appearance of the rocket during liftoff.

• Information panel included: Adds an educational finishing touch to the completed display.

• Hands-on STEM experience: The working mechanism demonstrates how interconnected Technic components can recreate a complex rocket separation sequence.

• 2026 LEGO® Technic release: A distinctive space-focused addition to the Technic collection for builders ages 9 and up.

• Impressive 70 cm height: With the rocket in position, the completed model measures over 70 cm (27.5 in.) high, 16 cm (6.5 in.) long and 8 cm (3 in.) wide.

Why You’ll Love It

LEGO® Technic 42221 NASA Artemis Space Launch System Rocket goes beyond simply recreating the appearance of a spacecraft. Its hand-operated mechanism demonstrates the actual sequence of a multistage rocket launch, allowing the boosters, core stage and upper stage to separate progressively as the crank turns. The Orion spacecraft, four astronaut nanofigures and information panel add further detail, while the finished model’s impressive 70 cm height gives it plenty of presence on display. For LEGO® fans fascinated by NASA, engineering and the return of human exploration to the Moon, 42221 offers an engaging combination of building, mechanics and modern space exploration.

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