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Ages 10+

Planet Earth and Moon in Orbit (42179)

Name: Planet Earth and Moon in Orbit
Brand: LEGO
SKU: 42179
Rating: 4.6 (4 reviews)

Prices last checked: 30 April 2026 at 18:29

LEGO.com RRP:

£69.99

Best Price Found

€56.26(~£47.26) -£10.00 (14%)

View Deal →

Amazon DE// Last Checked: 30 Apr

LEGO.com

★4.6

(4 reviews)

★4.7

🧱 526 pieces - : £0.11

Available From

Best Deal

€56.26(~£47.26)

Free delivery with Prime

Price checked: 30 Apr 2026

View Deal →

£59.99

£69.99

Free delivery with Prime

Save £10.00 (14% off)

Price checked: 30 Apr 2026

View Deal →

€64.85(~£54.47)

Price checked: 16 Mar 2026

View Deal →

£70.00

Price checked: 30 Apr 2026

View Deal →

LEGO.comOfficial

£69.99

Price updated: 30 Apr 2026

View on LEGO →

Building Instructions Brickset

Price Analysis

Lowest Price Ever

£3.99

at Amazon UK · Jan 2026

Average Price (12mo)

£56.82

Current vs Average

-16.8%

Below average

Price Trend

Falling

Last 30 days

Best Month to Buy

January

Value Score

10.0/10

Price-per-piece vs theme avg

The lowest price we've recorded for Planet Earth and Moon in Orbit is £3.99 at Amazon UK in January 2026. The current price is 16.8% below the 12-month average of £56.82. Prices have been trending downward recently — a good time to buy. Historically, January tends to offer the best prices for this set.

Price History & Buying Verdict

VerdictGood time to buy

•It's currently 16.8% below the 12-month average price of £56.82 — a notably good window.
•Prices have trended downward over the last 30 days — there's a chance of a further dip.
•On price-per-piece, this is one of the better-value sets in the Technic range (value score 10.0/10 vs theme average).
•A recent price drop of about £15.00 was recorded in the last 30 days.

We've been tracking the price of LEGO Technic Planet Earth and Moon in Orbit (526 pieces) for 106 days, recording 46 data points across LEGO.com and major UK retailers. Over that period the price has dropped 12 times below previous levels, with the lowest price ever recorded being £3.99 at Amazon UK in January 2026.

The 12-month average sale price for set 42179 works out to £56.82 — that's 18.8% below the LEGO RRP of £69.99. The highest price we recorded across our tracked retailers was £70.00, giving a range of about £66.01 between the cheapest and most expensive observation.

Amazon UK has run the most price drops on this set in the period we've tracked, making it the retailer most worth watching for short-term deals. Historically, January has produced the lowest average prices for Planet Earth and Moon in Orbit, so if you're not in a hurry it's worth bookmarking the page closer to that window. Prices have been trending downward over the last 30 days.

Want to see how LEGO Planet Earth and Moon in Orbit (set 42179) compares against other sets? Browse the best-value LEGO sets or check the full price-history tracker.

Description

Planet Earth and Moon in Orbit (42179) is a LEGO Technic set with 526 pieces, with an RRP of £69.99. It's currently available from £47.26 at Amazon DE — 14% below the RRP, saving you £10.00. Prices have been falling over the last 30 days. With a value score of 10.0/10, this set offers excellent value compared to other Technic sets.

SpecificationsCurious 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.

Features

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

Frequently Asked Questions about Planet Earth and Moon in Orbit

What is the best price for LEGO Planet Earth and Moon in Orbit (Set 42179)?

The best current price for LEGO Planet Earth and Moon in Orbit (Set #42179) is £56.26 at Amazon DE. This is £10.00 cheaper than the official LEGO RRP of £69.99. Price last verified on 30 April 2026.

How much can I save on LEGO Planet Earth and Moon in Orbit?

You can save £10.00 (14% off) on LEGO Planet Earth and Moon in Orbit by buying from Amazon DE instead of LEGO.com. The official RRP is £69.99, but you can get it for just £56.26. Browse more top discounts.

How many pieces are in LEGO set 42179?

LEGO Planet Earth and Moon in Orbit (Set #42179) contains 526 pieces. At the best available price of £56.26, that works out to approximately 10.7p per piece.

What age is LEGO Planet Earth and Moon in Orbit suitable for?

LEGO Planet Earth and Moon in Orbit (Set #42179) is recommended for ages 10+. This set is part of the LEGO Technic theme. View all Technic sets and deals.

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

You can download the official building instructions for LEGO Planet Earth and Moon in Orbit (Set #42179) for free from LEGO.com. Download the building instructions here. The instructions are available as a PDF and can be viewed on any device.

Where can I buy LEGO Planet Earth and Moon in Orbit in the UK?

LEGO Planet Earth and Moon in Orbit (Set #42179) is available from 4 UK retailers including Amazon DE, Amazon UK, Amazon FR and others. Prices range from £56.26 to £70.00. It's also available directly from LEGO.com at £69.99.

Is LEGO Planet Earth and Moon in Orbit on sale right now?

Yes! While not on sale at LEGO.com, you can get LEGO Planet Earth and Moon in Orbit for £56.26 at Amazon DE - that's 14% below the official RRP of £69.99. Browse more best offers.

What is the lowest price ever recorded for LEGO Planet Earth and Moon in Orbit?

The lowest price we've recorded for LEGO Planet Earth and Moon in Orbit (Set #42179) is £3.99 at Amazon UK in January 2026. That's 94% off the LEGO RRP of £69.99. Track the latest movements on our LEGO price history page.

Is LEGO Planet Earth and Moon in Orbit good value for money?

Comparing piece-count to price across the LEGO Technic theme, this set scores 10.0 / 10 for value. That works out to about 10.7p per piece. That puts Planet Earth and Moon in Orbit in the top tier of Technic sets for raw build value — you're paying noticeably less per brick than the theme average. Compare against other contenders on our best-value LEGO sets page.