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LEGO review roundup

LEGO space sets, reviewed in plain English

We picked three LEGO space sets that are easy to find on Amazon, read hands-on reviews from LEGO fan sites and Space.com, and boiled them down: one moving rocket for kids and two display models for grown-ups.

  • Last reviewed October 20, 2026
  • 3 LEGO space sets
  • 7 expert reviews read

We didn't test these ourselves. We read reviews from experts who test products hands-on, then summed up where they agree and where they don't. Every source is linked. As an Amazon Associate I earn from qualifying purchases.

Short on time? Start here

Our top pick in each group. Tap one to jump to the details.

Best for kids LEGO Technic NASA Artemis Space Launch System Rocket (42221) $50–$60 A moving rocket for ages 9 and up. See details Best display model LEGO Icons Hubble Space Telescope (11382) $120–$140 Big, detailed and a good value. See details Best for sci-fi fans LEGO Icons Project Hail Mary (11389) $85–$100 A clever orbiting stand. See details

Before you buy: 3 quick checks

Age, display or play, and build time.

Follow the age on the box

LEGO's age label tells you how hard the build is. 18+ sets are long, fiddly builds made for display. All of these have small parts, so keep them away from young kids and pets.

Display or play?

Display models look great on a shelf but aren't built to be played with. Technic sets have gears and moving parts that kids can work by hand.

Plan the build time

Bigger sets take longer. Around 600 pieces is an afternoon for most builders, and 1,000 or more can fill a weekend. It's a great project to build together.

Compare at a glance

On a phone, swipe the table sideways to see every column.

SetBest forTypical priceAgesPieces
1. LEGO Technic NASA Artemis Space Launch System Rocket (42221) Best for kids $50–$609+632
2. LEGO Icons Hubble Space Telescope (11382) Best display model $120–$14018+1,252
3. LEGO Icons Project Hail Mary (11389) Best for sci-fi fans $85–$10018+830

3 LEGO space sets, explained

Kids' pick first, then two display sets for adults. Prices are typical ranges, not live prices, so check Amazon for today's price.

#1Best for kids

LEGO Technic NASA Artemis Space Launch System Rocket (42221)

  • 9+
  • 632
  • Technic (gears and a hand crank)

$50–$60typical price

A rocket on a launch stand with a hand crank that separates the boosters and stages, just like a real launch. Brickset and New Elementary both recommend it, and Space.com includes it in its best LEGO space sets.

What testers liked

  • Clever moving parts that worked smoothly over many test runs.
  • A challenging but fun build that suits kids 9 and up.
  • Something different from all the car sets, and it shows how a real launch works.

Common complaints

  • The crank can feel a little flimsy.
  • It does one main trick, so play value is limited, and the rocket body looks plain on a shelf.

Skip it if: You want a detailed display model. The Hubble set looks more realistic.

See it on Amazon
Read the reviews (3)

Summed up from Brickset, New Elementary, Space.com.

#2Best display model

LEGO Icons Hubble Space Telescope (11382)

  • 18+
  • 1,252
  • Display model on a stand

$120–$140typical price

A large, detailed model of the famous space telescope, with panels that come off to show the science instruments inside. Brick Fanatics rates it 8 out of 10, New Elementary calls the finished model super cool, and Space.com added it to its best LEGO space sets.

What testers liked

  • Big, impressive and full of accurate details for space fans.
  • Removable panels show the instruments inside, and it comes with an astronaut minifigure (a small LEGO person).
  • Good value for the number of pieces.

Common complaints

  • Most of the inside details are hidden once it's built.
  • Mostly gray, and the build can feel fragile, or dull if you don't love space science.

Skip it if: The builder is a kid. It's rated 18+ and made for display, not play.

See it on Amazon
Read the reviews (3)

Summed up from Brick Fanatics, New Elementary, Space.com.

#3Best for sci-fi fans

LEGO Icons Project Hail Mary (11389)

  • 18+
  • 830
  • Display model with a moving stand

$85–$100typical price

A display model of the spaceship from the Project Hail Mary book and movie. Turn the stand and the crew section circles a star. Brick Fanatics calls it the surprise hit of 2026, and New Elementary calls the moving stand fantastic, though both think it costs a bit too much.

What testers liked

  • A clever moving stand that's the star of the set.
  • Detailed figures of the main characters, including a great Ryland Grace minifigure.
  • Eye-catching on a shelf.

Common complaints

  • Both reviewers felt it's overpriced for what you get.
  • Much of the build is the stand and Technic parts, so there's less spaceship than fans may hope for.

Skip it if: They haven't read the book or seen the movie. The Hubble set is a better pick for general space fans.

See it on Amazon
Read the reviews (2)

Summed up from Brick Fanatics, New Elementary.

How we pick