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Ages 9+

NASA Artemis Space Launch System Rocket (42221)

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

Prices last checked: 27 October 2026 at 19:30

LEGO.com4.8(4)Amazon4.8632 pieces · 5.7p each

Available From

Cheapest right now

£36.00€42.99

Amazon FR

Save £18.99

35% under £54.99 RRP

Go to Amazon FR

Free delivery · priced in EUR, converted at the ECB rate of 23 Oct 2026

Its price range since we started watchingtoday is near the bottom

£36.99 lowest£55.00 highest

Also available

Amazon UK

Free delivery

£43.99

£11.00 under RRP

Buy

Amazon DE

Not re-checked since 18 Oct 2026

€39.59

Argos

Not re-checked since 16 Jun 2026

£44.00

LEGO.comOfficial

Sets the RRP everything else is measured against

£54.99

Buy

It was £36.99 at Amazon UK in October. Checked 53 times over 274 days · average £47.32.

Building Instructions Brickset

Price Analysis

Lowest Price Ever

£36.99

at Amazon UK · Oct 2026

Average Price (12mo)

£47.32

Current vs Average

-7.0%

Below average

Price Trend

Stable

Last 30 days

Best Month to Buy

August

Value Score

10.0/10

Price-per-piece vs theme avg

The lowest price we've recorded for NASA Artemis Space Launch System Rocket is £36.99 at Amazon UK in October 2026. The current price is 7.0% below the 12-month average of £47.32. Historically, August tends to offer the best prices for this set.

Price History & Buying Verdict

VerdictGood time to buy

•The current best price of £36.00 is within 5% of the all-time low we've recorded (£36.99 at Amazon UK, October 2026).
•On price-per-piece, this is one of the better-value sets in the Technic range (value score 10.0/10 vs theme average).
•A recent price drop of about £3.00 was recorded in the last 30 days.

We've been tracking the price of LEGO Technic NASA Artemis Space Launch System Rocket (632 pieces) for 274 days, recording 53 data points across LEGO.com and major UK retailers. Over that period the price has dropped 21 times below previous levels, with the lowest price ever recorded being £36.99 at Amazon UK in October 2026.

The 12-month average sale price for set 42221 works out to £47.32 — that's 13.9% below the LEGO RRP of £54.99. The highest price we recorded across our tracked retailers was £55.00, giving a range of about £18.01 between the cheapest and most expensive observation.

Amazon UK has run the most price drops on this set in the period we've tracked, making it the retailer most worth watching for short-term deals. Historically, August has produced the lowest average prices for NASA Artemis Space Launch System Rocket, so if you're not in a hurry it's worth bookmarking the page closer to that window.

Want to see how LEGO NASA Artemis Space Launch System Rocket (set 42221) compares against other sets? Browse the best-value LEGO sets or check the full price-history tracker.

Description

NASA Artemis Space Launch System Rocket (42221) is a LEGO Technic set with 632 pieces, with an RRP of £54.99. It's currently available from £43.99 at Amazon UK, 20% below the RRP, saving £11.00. Amazon FR lists it for €42.99 (about £36.00 before delivery and any import costs). Prices have been stable over the last 30 days. With a value score of 10.0/10, this set offers excellent value compared to other Technic sets.

SpecificationsLaunch a journey of discovery with this NASA Artemis Space Launch System Rocket model kit (42221) for boys, girls and kids ages 9 plus. The educational LEGO® Technic™ set shows the moment a rocket launches, in 3 distinct stages. Turn the crank to see the solid rocket boosters separate from the core stage, which then also detaches. Continue turning to watch the upper stage with its engine module, Orion spacecraft and launch abort system separate. This rocket building kit has been developed in collaboration with NASA and ESA, and lets kids explore the space launch system that will launch the Orion spacecraft into lunar orbit. It includes 4 astronaut nanofigures, fun blue flame details, plus an information panel to create an eye-catching display. This LEGO Technic building set makes a fun gift for space enthusiasts. Kids can build with confidence using the LEGO Builder app, which lets them zoom, rotate in 3D and track progress with easy-to-follow digital instructions. Set contains 632 pieces.

Features

BUILD A SPACE LAUNCH SYSTEM – Capture the moment a rocket launches into space with this LEGO® Technic™ NASA Artemis Space Launch System Rocket set (42221) for boys, girls and kids ages 9 and up
RECREATE THE SEPARATION PROCESS – This educationalmodel rocket kit shows how a rocket separates upon launch as kids turn the hand crank to see the launch happen in 3 distinct stages
IN COLLABORATION WITH NASA – This rocket building kit has been developed with NASA and ESA and lets kids explore the system that will be used to launch the Orion spacecraft into lunar orbit
4 ASTRONAUT NANOFIGURES – This LEGO® Technic™ space set includes 4 astronaut nanofigures, plus an information panel, creating an eye-catching display that kids can explore time after time
GIFT IDEA – This LEGO® Technic™ building set makes a fun gift for boys, girls and space enthusiasts ages 9 years old and up who would love to build a model to show the stages of a rocket launch
DISCOVER MORE SETS – Explore more action-packed play with the range of LEGO® Technic™ sets (sold separately), which feature realistic movement and mechanisms to inspire young builders
A FUN WAY TO BUILD – The LEGO® Builder app guides kids on an intuitive building adventure where they can save sets, track progress and zoom in and rotate models using 3D instructions as they build
DIMENSIONS – A 632-piece set with a model measuring over 27.5 in. (70 cm) high, 6.5 in. (16 cm) long and 3 in. (8 cm) wide when the rocket is on top

Frequently Asked Questions about NASA Artemis Space Launch System Rocket

What is the best price for LEGO NASA Artemis Space Launch System Rocket (Set 42221)?

The best current UK price for LEGO NASA Artemis Space Launch System Rocket (Set #42221) is £43.99 at Amazon UK. This is £11.00 cheaper than the official LEGO RRP of £54.99. Price last verified on 27 October 2026.

How much can I save on LEGO NASA Artemis Space Launch System Rocket?

You can save £11.00 (20% off) on LEGO NASA Artemis Space Launch System Rocket by buying from Amazon FR instead of LEGO.com. The official RRP is £54.99, but you can get it for just £42.99. Browse more top discounts.

How many pieces are in LEGO set 42221?

LEGO NASA Artemis Space Launch System Rocket (Set #42221) contains 632 pieces. At the best available price of £42.99, that works out to approximately 6.8p per piece.

What age is LEGO NASA Artemis Space Launch System Rocket suitable for?

LEGO NASA Artemis Space Launch System Rocket (Set #42221) is recommended for ages 9+. This set is part of the LEGO Technic theme. View all Technic sets and deals.

Where can I find the building instructions for LEGO NASA Artemis Space Launch System Rocket?

You can download the official building instructions for LEGO NASA Artemis Space Launch System Rocket (Set #42221) for free from LEGO.com. Download the building instructions here. The instructions are available as a PDF and can be viewed on any device.

Where can I buy LEGO NASA Artemis Space Launch System Rocket in the UK?

LEGO NASA Artemis Space Launch System Rocket (Set #42221) is available from 2 UK retailers including Amazon FR, Amazon UK. Prices range from £36.00 to £43.99. It's also available directly from LEGO.com at £54.99.

Is LEGO NASA Artemis Space Launch System Rocket on sale right now?

Yes! While not on sale at LEGO.com, you can get LEGO NASA Artemis Space Launch System Rocket for £42.99 at Amazon FR - that's 20% below the official RRP of £54.99. Browse more best offers.

What is the lowest price ever recorded for LEGO NASA Artemis Space Launch System Rocket?

The lowest price we've recorded for LEGO NASA Artemis Space Launch System Rocket (Set #42221) is £36.99 at Amazon UK in October 2026. That's 33% off the LEGO RRP of £54.99. Track the latest movements on our LEGO price history page.

Is LEGO NASA Artemis Space Launch System Rocket good value for money?

Comparing piece-count to price across the LEGO Technic theme, this set scores 10.0 / 10 for value. That works out to about 6.8p per piece. That puts NASA Artemis Space Launch System Rocket in the top tier of Technic sets for raw build value — you're paying noticeably less per brick than the theme average. Compare against other contenders on our best-value LEGO sets page.