Set PricingExpected Good Investment
Still available at retail
Prices are currently low for this set.
This LEGO set typically sells between $80-$102 locally.
Set Facts
- This educational set includes a crank mechanism to demonstrate the orbits, along with printed months and moon phases to illustrate how Earth's rotation affects seasons.
Regional Retail Prices (LEGO.com/Store)
Planet Earth and Moon in Orbit Reviews
“42179 orrery creates an approximation of the Moon’s orbit around the Earth, and the Earth’s around the sun, with each celestial body represented via bespoke half-sphere elements (with the moon being a ball on a stick). Turning a handle at the base of the orrery sends the... More Earth on its orbit courtesy of a large Technic arm, accurately spinning the planet on the correct tilt as it does so, whilst the Moon circulates it.”
Brick Architect
“One of the best because it explores a completely new topic for an official LEGO Technic set. That’s because almost every LEGO Technic set is based on a vehicle of some kind — a pure mechanical machine is a really unusual offering in the theme. I think this is a great thing —... More this set has the potential to introduce a lot of new builders to LEGO Technic”
Subtheme Analysis
Community Stats
Planet Earth and Moon in Orbit currently ranks #1 out of the top most owned sets in Technic Space.
About Technic Space

The LEGO Technic Space theme, introduced in 2023, includes sets designed to capture the excitement and challenges of space exploration. Notable sets in this theme are the "42178 Surface Space Loader," which features a vehicle equipped for handling materials on extraterrestrial surfaces; the "42179 Planet Earth and Moon in Orbit," a model demonstrating orbital mechanics and celestial movements; the "42181 VTOL Heavy Cargo Spaceship LT81," a versatile vertical take-off and landing spacecraft for transporting heavy cargo; and the "42180 Mars Exploration Rover," a detailed rover with functional wheels and instruments for exploring the Martian surface.
Space was introduced in 2024 and currently consists of 5 sets.
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Curious kids aged 10+ will love learning more about our solar system with this LEGO® Technic™ Planet Earth and Moon in Orbit (42179) space toy set for kids. The interactive set makes it easy to understand different concepts like the orbit of the Earth and the Moon, the Earth’s gravitational pull and how the rotations affect the seasons. Cool features include a crankshaft that boys and girls can turn to create the rotations. There are also printed months and moon phases to show the progress of the Earth, Sun and Moon throughout the year. This set makes a great gift for kids who love planet toys. Check out more space gifts (sold separately) in the LEGO Technic range.
LEGO Technic building toys for kids include true-to-life details that introduce young LEGO builders to engineering through imaginative play. Give your youngster an easy and intuitive building adventure with the LEGO Builder app, where they can zoom in and rotate models in 3D, save sets and track their...
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