BricksValue

LEGO Planet Earth and Moon in Orbit (42179)

Technic · 526 pieces

From £55.99 at Amazon.co.uk · 20% off

Retiring by 31 December 2026 (70 days left) · How we estimate

LEGO Planet Earth and Moon in Orbit (42179)
1 / 9

Compare prices (UK)

Regular price £69.99

See it at Amazon.co.uk, £55.99

Last chance: New copies of retired sets tend to get scarcer and pricier.

. Amazon offers can be third-party (marked).

Also retiring soon in Technic

Price history

Lowest price today
£55.99
at Amazon.co.uk
Lowest we’ve recorded
£49.98
John Lewis, 8 Oct 2026
LEGO’s regular price
£69.99
today’s lowest is 20% off
Tracked since
8 Oct 2026
12 price changes since
Price records (18)
  • 23 October 2026 · Kidinn£64.99
  • 20 October 2026 · Amazon.co.uk£55.99
  • 19 October 2026 · Veryout of stock£54.99
  • 18 October 2026 · Amazon.co.uk£54.99
  • 16 October 2026 · Very£54.99
  • 15 October 2026 · Amazon.co.uk£55.99
  • 15 October 2026 · LEGO.com UK£69.99
  • 15 October 2026 · John Lewis£55.99
  • 13 October 2026 · Kidinn£61.99
  • 13 October 2026 · LEGO.com UK£69.99
  • 12 October 2026 · LEGO.com UKout of stock£69.99
  • 10 October 2026 · Amazon.co.uk£69.99
  • 10 October 2026 · Very£69.99
  • 10 October 2026 · Argos£70.00
  • 10 October 2026 · John Lewis£69.99
  • 9 October 2026 · Amazon.co.uk£49.98
  • 8 October 2026 · John Lewis£49.98
  • 8 October 2026 · LEGO.com UK£69.99

Prices at LEGO.com UK, Amazon.co.uk, Argos, Smyths Toys, Very, John Lewis, The Entertainer and Kidinn, checked daily. A line breaks when a store was out of stock or not selling the set.

LEGO Planet Earth and Moon in Orbit in other countries

The lowest price today in each country where LEGO sells it, converted at the European Central Bank’s rate. Delivery across borders isn’t included: most stores only ship inside their own country.

CountryLowest priceIn GBP
Show all 13 countries

Exchange rates of 22 October 2026.

Resale value

What the LEGO Planet Earth and Moon in Orbit actually sold for on BrickLink, the LEGO-owned marketplace, in the last 6 months.

New

£37.38

Median of 7 sales (worldwide), from £33.64 to £53.08

-47% vs LEGO’s regular price (£69.99)

Used

£25.67

Median of 10 sales (worldwide), from £22.24 to £37.37

-63% vs LEGO’s regular price (£69.99)

Sales on BrickLink, updated daily (last update 23 October 2026). Sold in US dollars, shown in British Pound at the ECB rate of 22 October 2026. Few sales mean a less reliable figure.

Set details

Pieces
526
Minifigures
None
Ages
10+
Released
2024
Set number
42179
Theme
Technic
Price per piece
10.6pat today’s lowest price
LEGO.com rating
4.5
LEGO Insiders points
560

LEGO Planet Earth and Moon in Orbit building instructions

Official instructions from LEGO.com, free to download. The LEGO Builder app has them too, many with 3D steps. All instructions on LEGO.com

LEGO Planet Earth and Moon in Orbit parts list

526 pieces in 117 different parts and colors.

  • Technic Pin with Friction Ridges Lengthwise with No Center Slots, Black×6261332
  • Technic Pin Long with Friction Ridges Lengthwise, 1 Center Slot, Blue×4842924
  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [2 Lateral Holes, Small Pin Hole], Light Bluish Gray×2665304
  • Technic Bush, Light Bluish Gray×113713
  • Technic Axle 3, Light Bluish Gray×114519
  • Technic Axle 2 Notched, Red×1132062

Parts list: Rebrickable.

About the LEGO Planet Earth and Moon in Orbit

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 kids can turn to create the rotations. There are also months and moon phases to show the progress of the Earth, Sun and Moon throughout the year. This set makes a great gift for boys, girls and all 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 progress.
  • Interactive model – Inspire kids to build a representation of the Earth, Sun and Moon in orbit with this LEGO® Technic™ Planet Earth and Moon in Orbit building toy for kids aged 10 and up
  • Educational space toy – Kids can turn the crank to see how the Earth and the Moon orbit around the Sun
  • Includes months and moon phases – This solar system toy includes details like the month and moon phases to help kids see how the Earth’s orbit affects our seasons
  • A space gift for kids – This set makes a fun gift for kids aged 10 and up who love planet toys and learning more about our solar system
  • Intuitive instructions – The LEGO® Builder app guides your youngster on an intuitive building adventure with tools that let them zoom in and rotate models in 3D, save sets and track their progress
  • Measurements – 526-piece set with a model measuring over 9 in. (24 cm) high, 12.5 in. (33 cm) long and 7 in. (18 cm) wide

Description: LEGO.com.

LEGO Planet Earth and Moon in Orbit: FAQ

Is the LEGO Planet Earth and Moon in Orbit retiring?

Yes: the LEGO Planet Earth and Moon in Orbit is retiring soon. LEGO flags it “Retiring soon” on LEGO.com UK (it already carried the flag when we started tracking on 8 October 2026). Expect it to be gone by 31 December 2026 at the latest (70 days), possibly sooner once stock runs out. LEGO doesn’t publish exact dates: this one is our estimate.

How much is the LEGO Planet Earth and Moon in Orbit?

The lowest price we found today is £55.99 at Amazon.co.uk, out of 5 stores selling it today (regular price £69.99). Prices change often: this page is updated every day.

Should I buy the LEGO Planet Earth and Moon in Orbit now or wait?

Retiring by 31 December 2026: buy it while you can. LEGO is retiring it: we expect it gone from LEGO.com UK by 31 December 2026, in 70 days. The best price today is £55.99 at Amazon.co.uk, 20% below LEGO’s regular price. New copies of retired sets tend to get scarcer and pricier.

Where can I find the instructions for the LEGO Planet Earth and Moon in Orbit?

LEGO publishes them for free on LEGO.com as a PDF, linked on this page, and in the LEGO Builder app.

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

526 pieces. At today’s price, that’s 10.6p per piece.

When was the LEGO Planet Earth and Moon in Orbit released?

It was released in 2024.

What is the LEGO Planet Earth and Moon in Orbit worth?

New, it sold for £37.38 on BrickLink (median of 7 sales in the last 6 months, worldwide). Used, £25.67 (10 sales). LEGO’s regular price is £69.99.

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