How many pieces does the LEGO NASA Artemis Space Launch System Rocket (42221-1) have?

The LEGO NASA Artemis Space Launch System Rocket set (42221-1) contains 632 pieces. It was released in 2026 as part of the LEGO Technic theme.

How can I find missing parts for LEGO set 42221-1?

On BrickMissing you can check which parts from the LEGO NASA Artemis Space Launch System Rocket (42221-1) you already own. Add your LEGO collection and we'll show exactly which of the 632 pieces you're missing and which you already have.

Can I build the LEGO NASA Artemis Space Launch System Rocket with parts I already have?

Use BrickMissing's free parts checker to find out. Add LEGO sets you own to your collection and we'll cross-reference all 632 parts to show your buildability percentage and which specific pieces you still need.

What theme is the LEGO NASA Artemis Space Launch System Rocket from?

The LEGO NASA Artemis Space Launch System Rocket (42221-1) belongs to the LEGO Technic theme. You can browse all Technic sets on BrickMissing to find more sets from this theme.

NASA Artemis Space Launch System Rocket - View 9

NASA Artemis Space Launch System Rocket

42221-1 Technic 2026 632 parts 9.6% repair risk 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.

View at LEGO.com € 59,99→ lego.com

42221-1

3D build progress

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Parts Inventory

🧱 632 parts

Part	Color	Qty	LEGO price each
Sticker Sheet for Set 42221-1 10115267	Unknown	1×	Check price → View
Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L Axle 11214	Red	2×	€0,29 View at LEGO → View
Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L Axle 11214	Dark Bluish Gray	12×	€0,29 View at LEGO → View
Technic Beam 1 x 5 Thin with Axle Holes on Ends 11478	Black	4×	€0,25 View at LEGO → View
String with End Studs 31L Overall 14226c31	Black	1×	€3,00 View at LEGO → View
Technic Panel 3 x 11 x 1 15458	Black	1×	€1,13 View at LEGO → View
Technic Axle 5 with Stop 15462	Reddish Brown	4×	€0,11 View at LEGO → View
Tile Round 2 x 2 with Hole 15535	White	6×	€0,07 View at LEGO → View
Technic Axle Pin 3L with Friction Ridges Lengthwise and 2L Axle 18651	Black	8×	€0,08 View at LEGO → View
Technic Pin Connector Round 1L [Beam] 18654	Black	3×	€0,05 View at LEGO → View
Technic Pin Connector Round 1L [Beam] 18654	Lime	6×	€0,05 View at LEGO → View
Technic Gear 16 Tooth with Clutch on Both Sides 18946	Red	2×	€0,42 View at LEGO → View

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Repairability

Can you fix NASA Artemis Space Launch System Rocket if a piece goes missing?

9.6%Moderate repair risk

easy to fixguard this box

15 of the 157 part+color combinations in this set appear in 3 or fewer sets ever made. Lose one of those and a replacement is very hard to find.

Theme average

6.5%

All sets

6.7%

Hardest to replace

Sticker Sheet for Set 42221-1 · Unknown · only this setTechnic Panel Curved 7 x 3 · Dark Orange · only this setCylinder Half 2 x 4 x 2 · Dark Orange · only this set

How we calculate this →