LEGO Reviews Technic42221

NASA Artemis Space Launch System Rocket

Name: LEGO NASA Artemis Space Launch System Rocket 42221
Brand: LEGO
SKU: 42221

80 · HIGHLY RECOMMENDEDINVESTMENT GRADE: A2025632 pcsHigh agreement · 93%

Expert reviews

6analyzed

Owner ratings

515

BrickScore

Highly Recommended

Owners

Synthesized Verdict

"The Artemis SLS Rocket earns its BrickScore of 79.6 primarily through its clever booster-separation mechanism, which delights space fans of all ages and draws a near-perfect 4.9 owner rating from over 500 buyers. At $59.99 it is a satisfying, interactive Technic build that prioritizes function over visual complexity."

The NASA Artemis Space Launch System Rocket won over reviewers and owners alike with its standout mechanical gimmick: a crank-driven booster-separation mechanism that lets you simulate the rocket's staging sequence. For a 632-piece Technic set at $59.99, it punches well above its price in engagement. Owners rate it an exceptional 4.9 out of 5 across 512 ratings, with 86% recommending it and a value-for-money signal of 4.71 out of 5, tracking closely with the BrickScore of 79.6

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LOVED (6)

01Crank-operated booster separation mechanism that simulates the rocket staging sequence
02Strong NASA and space-enthusiasm appeal, timed to the Artemis II mission window
03Accessible build for a wide age range, approachable for younger builders while engaging for adults

+3 more with Collector

CRITICIZED (3)

01Design aesthetics scored the lowest of all aspects at 66.3, suggesting some reviewers find the visual execution less polished than the mechanism
02Minifigure category scored weakest at 54.9, indicating the included astronaut figures are not a highlight
03Display value aspect scored only 66.9, with the set better suited as a playable model than a pure shelf piece

Build Facts what critics report

⏱ Build time

Not explicitly stated

🧩 Difficulty

intermediate

🎯 Audience

all

In Their Words most-used terms across every critic review

mechanismtechnicdesignlaunchvaluestickerslimitedplaygoodinterestingeducationalastronautusingcleverpartsengineeringartemisstagedoesnstickerfunctionaltypicalworksfunctiongreatvisualaccessiblepart

What reviewers are saying

"This is pretty much a perfect set."

Rebrickable Reviews

"A simple but brilliant function. I love it."

RacingBrick

Ecosystem

42179-1 - Planet Earth and Moon in Orbit 75 — Reviewer's last Technic set; loved it and had high hopes for this one.

10341-1 - NASA Artemis Space Launch System 74 — The more static yet much larger set. This smaller Technic version is far more accessible to the average Joe and adding mechanics makes it more desirable. Reviewer expects this one to potentially land in top 10 of the year.

Small-scale Technic supercars — The Artemis set offers 'far more real Technic value' despite expected lower popularity due to superior mechanical engineering and functional complexity.

🎨 Designer Olav Krøigaard (named by critics)

TechnicInvestment Grade

By Reviewer · 2

Avg score

Rebrickable Reviews

Editorial Source

BUY

"This is pretty much a perfect set."

Key Pros

✓Kinetic mechanism that works smoothly every time
✓Thoughtful design showing mechanism rather than hiding function
✓Fun build without being overwhelming or repetitive

Key Cons

✕Not a scale model replica so lacks accuracy if that is important
✕Astronaut nanofigures not to scale to fit in rocket (though described as acceptable)

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RacingBrick 🇭🇺

Expert Video Source

BUY

"A simple but brilliant function. I love it."

Key Pros

✓Smooth, well-thought-out launch mechanism using rope and chain
✓Clever friction-pin-based sound system that doubles as position-holding mechanism
✓Multiple new and rare Technic parts

Key Cons

✕Concerns about Artemis SLS branding given program's contentious history
✕Realism issues—boosters don't separate immediately, upper stage doesn't separate

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Dimensional Analysis

Investment Layer

Critics discussed this set's investment case

Buy-now vs wait consensus, value drivers, exclusivity and resale outlook

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Minifigures & Standout Parts

Standout parts (per reviewers)

7660 Technic Connector 1 x 5 with Worm Gear Hole
New part
7654 Brick Round 2 x 2 x 3 D. Tube with Axle Holes (Crossholes) at Each End, Pin Holes In Sides - White
New part
4586 Technic Beam 1 x 9 Thin with 3 Holes - Black
New color (Black)
24119 Technic Panel Curved 7 x 3 with 2 Pin Holes through Panel Surface - Dark Orange
New color (Dark Orange)
32524 Technic Beam 1 x 7 Thick - Dark Orange
New color (Dark Orange)
24593 Cylinder Half 2 x 4 x 2 with 1 x 2 Cutout - Dark Orange
New color (Dark Orange)