LEGO's space theme is a perennial favorite, captivating imaginations with the wonder and possibilities of space exploration. Beyond the inherent thrill of discovery, space exploration yields tangible benefits—innovations like widespread internet access and medical imaging are direct results of space program research. The aspirational aspect is equally powerful, inspiring children to pursue STEM fields and dream big.
For the aspiring astronaut in all of us, here are some of the best LEGO space-themed sets available in 2025.
Here's a closer look at our top picks:
Set: #31134 Age Range: 6+ Piece Count: 144 Dimensions: 2.5 inches high, 5 inches long, 6 inches wide Price: $9.99. An affordable and versatile set, rebuildable into an astronaut or spaceship, perfect for beginners.
Set: #31142 Age Range: 9+ Piece Count: 874 Dimensions: 10.5 inches high, 10.5 inches wide, 22 inches deep Price: $109.99. A detailed 3-in-1 model, also buildable as a drop tower or swing carousel.
Set: #31152 Age Range: 9+ Piece Count: 647 Dimensions: 10.5 inches tall Price: $54.99. A 3-in-1 set featuring an astronaut, astronaut dog, or viper jet; the astronaut build is particularly impressive.
Set: #21340 Age Range: 18+ Piece Count: 688 Dimensions: 5.5 inches high, 3.5 inches wide, 1 inch deep each Price: $49.99. Four 3D postcards perfect for wall decoration, inspired by 80s minimalist aesthetics.
Set: #42182 Age Range: 18+ Piece Count: 1913 Dimensions: 5.5 inches high, 15 inches long, 10 inches wide Price: $219.99. A detailed Technic model of the Apollo 17 lunar rover, featuring steering and suspension.
Set: #42158 Age Range: 10+ Piece Count: 1132 Dimensions: 9 inches high, 12.5 inches long, 9 inches wide Price: $99.99. Includes a model of the Ingenuity helicopter and an AR app for enhanced learning.
Set: #42179 Age Range: 10+ Piece Count: 526 Dimensions: 9 inches high, 12.5 inches long, 7 inches wide Price: $74.99. A geared mechanism demonstrating Earth's and Moon's orbits, also showing time of year and lunar phases.
Set: #10341 Age Range: 18+ Piece Count: 3601 Dimensions: 27.5 inches high, 10.5 inches wide, 12 inches deep Price: $259.99. A large-scale model of the Artemis rocket, highly detailed and impressive.
Set: #31212 Age Range: 18+ Piece Count: 3091 Dimensions: 15.5 inches high, 25.5 inches wide, 2 inches deep Price: $199.99. A 3D representation of the Milky Way, creatively using a variety of LEGO pieces.
Set: #10391 Age Range: 18+ Piece Count: 966 Dimensions: 19.5 inches high, 7.5 inches deep, 7 inches wide Price: $109.99. A colorful and inspiring set co-designed by Pharrell Williams, symbolizing creativity and big dreams.
As of March 2025, LEGO's official site lists over 25 LEGO Space sets.
These sets offer a fun and engaging entry point into STEM fields, and the enduring appeal of the space theme speaks for itself.
For more LEGO recommendations, check out our guides on the best LEGO sets for adults and the best Star Wars LEGO sets, as well as our gift guide for LEGO sets.
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