NASA Artemis Space Launch System Rocket
42221-1 Technic 2026 632 parts 9.6% catalog rarity Intermediate
Witness the intricate mechanics of space exploration with the LEGO Technic NASA Artemis Space Launch System Rocket (42221-1). This detailed model, developed in collaboration with NASA and ESA, meticulously recreates the Artemis mission's multi-stage launch sequence. Activate the innovative crank mechanism to observe the solid rocket boosters separating from the core stage, followed by the detachment of the core stage itself. Continue the sequence to see the upper stage, complete with its engine module, the Orion spacecraft, and the launch abort system, separate for lunar orbit insertion. Four astronaut nanofigures accompany the rocket, which stands ready for display with captivating blue flame details and an informative panel. This set offers an authentic representation of a modern space launch.
42221-1
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Parts Inventory
Showing the first 12 rows of the parts list (632 pieces in total). The full list loads automatically.
| Part | Qty | LEGO price each |
|---|---|---|
| 1× | Check price → View | |
| 2× | €0,29 | |
| 12× | €0,29 | |
| 4× | €0,25 | |
| 1× | €3,00 | |
| 1× | €1,13 | |
| 4× | €0,11 | |
| 6× | €0,07 | |
| 8× | €0,08 | |
| 3× | €0,05 | |
| 6× | €0,05 | |
| 2× | €0,42 |
Catalog rarity
How common are the parts in NASA Artemis Space Launch System Rocket?
15 of 157 recorded part+color combinations appear in 3 or fewer sets in our catalog. This does not measure replacement availability or price.
Theme average
6.5%
All sets
6.7%
Least common in our catalog
More Technic sets
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Build DNA
Parts inventory insights for NASA Artemis Space Launch System Rocket
632 pieces puts this build -3% against the average Technic set and -15% against the average 2026 release.

Vs average Technic set
Average Technic set: 651 pieces across 454 other sets.
Vs average 2026 set
Average 2026 set: 745 pieces across 517 other sets.
Color profile
Dominant color
Black
Unique parts
4.9 pieces per unique type
Repeat factor
Average pieces per unique type.
Most used part
Technic Pin with Friction Ridges Lengthwise with No Center Slots
91xResults are based on official LEGO part inventories. Accuracy improves as you confirm set completeness.
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