LEGO Technic NASA Artemis Space Launch System Rocket Building Set, 632 pc.

Item # 990475859
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Highlights

  • BUILD AN OFFICIAL NASA ROCKET – Kids prepare to explore outer space with the LEGO Technic NASA Artemis Space Launch System Rocket (42221) building toy for boys and girls ages 9 years old and up
  • 3-STAGE ROCKET SEPARATION – Young builders can turn the hand crank to watch the rocket separate in 3 distinct stages: solid rocket boosters, core stage, then upper stage with Orion spacecraft
  • STEM BUILDING TOY FOR KIDS – This educational rocket kit was created in collaboration with NASA and ESA to showcase the authentic system that will launch the Orion spacecraft into lunar orbit
  • PRETEND PLAY POSSIBILITIES – Kids can dream up creative space adventures with 4 astronaut nanofigures, blue flame details and an information panel for eye-catching display

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4.9298 out of 5 Stars. 57 reviews
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LEGO Technic NASA Artemis Space Launch System Rocket Building Set, 632 pc.
LEGO Technic NASA Artemis Space Launch System Rocket Building Set, 632 pc.
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About this item

Product details

Embark on Space Adventures with LEGO Technic NASA Artemis Rocket

Dive into the world of space exploration with the LEGO Technic NASA Artemis Space Launch System Rocket (42221). Designed for kids aged 9 and up, this STEM building set offers an authentic rocket model experience, developed in collaboration with NASA and ESA. Young builders can recreate the thrilling 3-stage separation process, turning the hand crank to watch the solid rocket boosters, core stage, and upper stage detach in sequence.

Educational and Engaging STEM Toy

This rocket kit is not just fun but educational, allowing kids to explore the mechanics of the space launch system that propels the Orion spacecraft into lunar orbit. With realistic movements and mechanisms, LEGO Technic sets introduce budding engineers to the fascinating world of engineering in an approachable way. The set includes 4 astronaut nanofigures, blue flame details, and an information panel for an impressive display.

Interactive Building Experience

The LEGO Builder app enhances the building experience with digital tools that let kids track their progress, zoom in, and rotate models using 3D instructions. With 632 pieces, this set provides hours of engaging play and learning, making it a perfect gift for birthdays or holidays for space and STEM enthusiasts.

Recreate the Thrill of a Rocket Launch

Assemble all the elements and turn the crank to simulate a rocket launch in 3 stages. Watch as the solid rocket boosters separate, followed by the core stage detaching, and finally the upper stage with its engine module, Orion spacecraft, and launch abort system. Display your completed model with pride until it's time for the next launch adventure!
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Specifications

Recommended Age Range: 9+ years

Included: 632 pieces

Member ratings & reviews

4.9 out of 5 stars
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Showing 1-3 of 56 reviews

Jan 26, 2026
LeastPopularAlligator
5 out of 5 stars review

Verified Purchase

Funniest set I've gotten in awhile!

I absolutely love Space sets and it was such a blast to build! Challenging in the way and motivates you to keep building and the payoff was so well done! Wonderful build mechanics!

Review from LEGO
Helpful?68I0859W3Q2A18769359237
Jan 12, 2026
Mr.GallantMartian103
5 out of 5 stars review

Verified Purchase

Fun SLS Model

This set was fun to build because it utilizes gears, a crank shaft, and worm gears to simulate the SLS launching Orion into Space. I think it's very cool to see the motion of the boosters separating the main engine and then watching Orion separate from the main engine. The timing of this set release was spot on given the up incoming Artemis II mission.

Review from LEGO
Helpful?68I0859W3Q2A18769359237
Jan 11, 2026
JegErAlan
5 out of 5 stars review

Verified Purchase

Grabbed It the First Day It Was Available

When I saw demos of this set last year, I set a reminder for launch day to grab this for my LEGO-building son-in-law. After he constructed it (while I was in town visiting the grandchildren) I was glad I did. What a well-designed, well-constructed set…which impressed the grandkids too. :-) And, I am kind of amazed that it was so inexpensive. Nicely done LEGO! I might get one for myself. :-)

Review from LEGO
Helpful?68I0859W3Q2A18769359237