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42179 LEGO Technic Space Planet Earth and Moon in Orbit thumbnail image

42179 LEGO Technic Space Planet Earth and Moon in Orbit
Images 6Description 
42179 LEGO Technic Space Planet Earth and Moon in Orbit
  • Planet Earth and Moon in Orbit thumbnail
  • Planet Earth and Moon in Orbit thumbnail
  • Planet Earth and Moon in Orbit thumbnail
  • Planet Earth and Moon in Orbit thumbnail
  • Planet Earth and Moon in Orbit thumbnail
  • Planet Earth and Moon in Orbit thumbnail

LEGO 42179 Planet Earth and Moon in Orbit is a Technic set currently available at retail for $79.99 and is projected to retire in early to mid 2027. Current new-sealed secondary market prices range from $70 to $100, with the average below MSRP at $73. Momentum is building as member interest climbs, which has made it one of the most followed Technic sets.

Forecast Model

This represents the expected annual growth (CAGR) based solely on a forecast model.
LEGO 42179 Planet Earth and Moon in Orbit is a Technic Space set released in 2024, containing 526 pieces. The set builds an interactive orrery model of Earth, the Moon, and the Sun, operated by a crank mechanism that demonstrates their relative orbits. Printed elements for the months and moon phases help illustrate seasonal changes and lunar cycles. It functions as an educational display model centered on planetary motion.

Once retired, the expected annual growth will be close to 3% after the second year, valuing the set between $86 and $89 shortly after it is retired.
Retirement risk.Planet Earth and Moon in Orbit has been available for 31 months. Based on the average lifespan of comparable sets (20 months), this set may be at risk of retiring in the coming months.
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For Sale (New/Sealed)

This chart shows the sales listing trends of 42179 Planet Earth and Moon in Orbit.
 (US) TECHNIC: Planet Earth and Moon In Orbit (42179) Sealed Retired
BrickEconomy Choice
$60.00
(US) TECHNIC: Planet Earth and Moon In Orbit (42179) Sealed Retired $60.00
-25.0%
(US) LEGO Technic 42179-1 Planet Earth and Moon in Orbit $63.99
-20.0%
(US) Planet Earth and Moon in Orbit from BrickLink seller tballw32 $64.00
-20.0%
(US) Technic Planet Earth and Moon in Orbit 42179 Building Set 526 Pieces NEW $64.87
-18.9%
(US) 42179 Planet Earth and Moon in Orbit New Factory Sealed $68.99
-13.8%
(US) New LEGO Technic 42179 Planet Earth and Moon in Orbit Set Space Educational $69.00
-13.7%
(US) TECHNIC: Planet Earth and Moon in Orbit (42179) $69.48
-13.1%
(US) Planet Earth and Moon in Orbit from BrickLink seller dunlopmy $69.81
-12.7%
(US) Planet Earth and Moon in Orbit from BrickLink seller ButterballBuild $69.88
-12.6%
(US) LEGO Technic 42179-1 Planet Earth and Moon in Orbit | New Sealed In Box $69.99
-12.5%
(US) Technic 42179 Planet Earth and Moon in Orbit Space 526 pcs New/Sealed $69.99
-12.5%
(US) Technic Planet Earth and Moon in Orbit 42179 Building Set 526 PCs (SEALED) $69.99
-12.5%
(US) TECHNIC PLANET EARTH AND MOON IN ORBIT SET 42179 $70.00
-12.5%
(US) 42179 - TECHNIC: Planet Earth and Moon in Orbit - New $74.99
-6.3%
(US) Technic 42179 Planet Earth and Moon in Orbit $74.99
-6.3%
(US) TECHNIC: Planet Earth and Moon in Orbit (42179) 526 pcs NEW Sealed $74.99
-6.3%
(US) Amazon listing for Planet Earth and Moon in Orbit $74.99
-6.3%
(US) TECHNIC: Planet Earth and Moon in Orbit (42179) $75.00
-6.2%
(US) New LEGO Technic Planet Earth and Moon in Orbit Set 42179 Space Educational $79.87
-0.2%
(US) TECHNIC: Planet Earth and Moon in Orbit 526 Pieces 42179 New Factory Sealed $79.99
Picked for your regionShow 20 more listings

Market Momentum

Bullish
Member interest is climbing while the set trades slightly under retail. The value leans up as collectors buy more copies, with retirement drawing near as a secondary factor. This Technic model points to steady demand over the coming months.
DemandTop 5% in Technic
Very high demand and rising
12 months agoToday
Price vs retailLast 22 days
6% below retail
Lowest new price at Amazon
Outlook:7% bearish·53% neutral·40% bullish
Why it's moving, signals and outlook

Compared with other NASA Technic Space sets

$0.15 a piece
New and sealed value per piece
This set
$0.15
Typical
$0.10
About 55% above the group's typical value per piece.
NASA Technic Space sets by valueValueSince retail
42180 Mars Exploration Rover$150+0%
42179 Planet Earth and Moon in Orbit$80On sale
42221 NASA Artemis Space Launch System Rocket$62On sale

NASA Technic Space Sets

42221 NASA Artemis Space Launch System Rocket

Theme / Subtheme Technic / Licensed
Year 2026
Pieces / Figures 632 / 4
Availability Retail
42221 LEGO Technic NASA Artemis Space Launch System Rocket
Retail $59.99
Available at retail

42211 Lunar Outpost Moon Rover

Theme / Subtheme Technic / Space
Year 2025
Pieces 1,080
Availability Retired
42211 LEGO Technic Space Lunar Outpost Moon Rover
Retail $99.99
Value ~$99.99

42181 VTOL Heavy Cargo Spaceship LT81

Theme / Subtheme Technic / Space
Year 2024
Pieces 1,365
Availability Retired
42181 LEGO Technic VTOL Heavy Cargo Spaceship LT81
Retail $109.99
Value $105.00

42180 Mars Exploration Rover

Theme / Subtheme Technic / Space
Year 2024
Pieces 1,599
Availability Retired
42180 LEGO Technic Space Mars Exploration Rover
Retail $149.99
Value $150.00
Growth  +0.0%

42178 Surface Space Loader

Theme / Subtheme Technic / Space
Year 2024
Pieces 435
Availability Retired
42178 LEGO Technic Surface Space Loader
Retail $34.99
Value $32.31

Sets in Technic / Space

42180 Mars Exploration Rover

Theme / Subtheme Technic / Space
Year 2024
Pieces 1,599
Availability Retired
42180 LEGO Technic Space Mars Exploration Rover
Retail $149.99
Value $150.00
Growth  +0.0%

42181 VTOL Heavy Cargo Spaceship LT81

Theme / Subtheme Technic / Space
Year 2024
Pieces 1,365
Availability Retired
42181 LEGO Technic VTOL Heavy Cargo Spaceship LT81
Retail $109.99
Value $105.00

42211 Lunar Outpost Moon Rover

Theme / Subtheme Technic / Space
Year 2025
Pieces 1,080
Availability Retired
42211 LEGO Technic Space Lunar Outpost Moon Rover
Retail $99.99
Value ~$99.99

42178 Surface Space Loader

Theme / Subtheme Technic / Space
Year 2024
Pieces 435
Availability Retired
42178 LEGO Technic Surface Space Loader
Retail $34.99
Value $32.31

Planet Earth and Moon in Orbit Questions

How much is the Planet Earth and Moon in Orbit set worth?

A new, sealed copy of Planet Earth and Moon in Orbit is worth about $73 at the moment. A used copy in good condition goes for about $66.

Is LEGO 42179 Planet Earth and Moon in Orbit retired?

No. Planet Earth and Moon in Orbit is still on sale. LEGO released it in March 2024. No retirement date has been announced yet. Space sets typically stay on sale for about 20 months, and Planet Earth and Moon in Orbit is about 3 years in.

Is LEGO 42179 Planet Earth and Moon in Orbit selling above or below retail?

At $73, Planet Earth and Moon in Orbit sits 9% under retail ($79.99), which is common while a set is still in production.

How many pieces are in LEGO 42179 Planet Earth and Moon in Orbit?

The set contains 526 pieces, or $0.15 per piece at retail.

Top lists

My Collection

Planet Earth and Moon in Orbit Reviews

34 reviews
4.8
Collectors
Investors
“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.”
Full review at thelegocarblog.com
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”
Full review at brickarchitect.com

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 currently consists of 5 sets that as of now has run from 2024 to 2025. As of today, 42180 Mars Exploration Rover is the most valuable Space set with an estimated new/factory sealed value of $150.
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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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