Retiring soonAges 8+

Space Exploration Telescope (31378)

Name: Space Exploration Telescope
Brand: LEGO
SKU: 31378

LEGO.com4.6(4)278 pieces · 10.8p each

Available From

No current price from any retailer we track. LEGO.com lists it at £29.99.

Also available

Argos

Not re-checked since 29 May 2026

£30.00

LEGO.comOfficial

Sets the RRP everything else is measured against

£29.99

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Building Instructions Brickset

Price Analysis

Not enough price data yet for a detailed analysis. We're tracking this set and will have insights available soon.

Price History & Buying Verdict

VerdictBuy now

•This set is marked as retiring soon by LEGO — once production stops, prices on the secondary market typically rise significantly.

We're still building up the price history for LEGO Space Exploration Telescope (31378). Once we have a few weeks of data across LEGO.com and our tracked retailers, we'll show you the lowest recorded price, monthly averages, and a buy/wait recommendation here.

Want to see how LEGO Space Exploration Telescope (set 31378) compares against other sets? Browse the best-value LEGO sets or check the full price-history tracker.

Description

Space Exploration Telescope (31378) is a LEGO Creator 3-in-1 set with 278 pieces, with an RRP of £29.99.

SpecificationsBoys and girls ages 8 and up can indulge their passion for science and space with this LEGO® Creator 3 in 1 Space Exploration Telescope (31378) building set. This detailed STEM toy offers 3 different building options with the same set of bricks. Kids can choose to build an adjustable telescope toy on a tripod with a solar system model featuring the sun and 8 planets that can be spun around. This can be rebuilt into an adjustable microscope toy or a UFO model with posable antennae and legs that flip out to display it. Each space toy includes a light brick (batteries included), which kids can activate by pushing a button to project images from the telescope onto a surface, illuminate images on the microscope or beam a light from underneath the UFO. There are 3 interchangeable decorated lenses, with images of a planet, a star and the Moon to project from the telescope or view inside the microscope. Please note models cannot be built simultaneously. Set contains 278 pieces.

Features

3 IN 1 STEM TOY – LEGO® Creator 3 in 1 Space Exploration Telescope (31378) building toy lets boys and girls ages 8 plus build and rebuild 3 different space and science toys with the same bricks
ENDLESS PRETEND PLAY OPTIONS – Kids can play out stories with 3 STEM building toys (models cannot be built simultaneously): a telescope toy with a solar system model, a microscope toy or a UFO model
LIGHT BRICK – Push a button on each space toy to activate a light brick (batteries included): the telescope projects images, the microscope illuminates images and the UFO shines a beam
3 LENSES TO PROJECT AND VIEW – LEGO® space playset has 3 interchangeable decorated lenses, a planet, a star and the Moon, to project from the telescope on to a surface or view inside the microscope
GIFT FOR KIDS – This great value LEGO® Creator 3 in 1 set is a space gift for kids, boys or girls ages 8 and up who love creative toys and imaginative play
A FUN WAY TO BUILD – Let the LEGO® Builder app guide kids on an intuitive building adventure, where they can save sets, track progress and zoom in and rotate models in 3D while they build
FEED YOUR KID’S PASSION – Every 3 in 1 set gives kids 3 different building options inspired by their biggest passions, including animals, vehicles and houses
DIMENSIONS – This 278-piece imagination toy set features a telescope toy measuring over 10.5 in. (27 cm) at its highest, 5 in. (12 cm) at its longest and 7.5 in. (19 cm) wide

Frequently Asked Questions about Space Exploration Telescope

What is the best price for LEGO Space Exploration Telescope (Set 31378)?

LEGO Space Exploration Telescope (Set #31378) is currently priced at £29.99 on LEGO.com. We continuously monitor prices across multiple UK retailers to find you the best deals.

How many pieces are in LEGO set 31378?

LEGO Space Exploration Telescope (Set #31378) contains 278 pieces. At the LEGO.com price of £29.99, that works out to approximately 10.8p per piece.

What age is LEGO Space Exploration Telescope suitable for?

LEGO Space Exploration Telescope (Set #31378) is recommended for ages 8+. This set is part of the LEGO Creator 3-in-1 theme. View all Creator 3-in-1 sets and deals.

Where can I find the building instructions for LEGO Space Exploration Telescope?

You can download the official building instructions for LEGO Space Exploration Telescope (Set #31378) 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 Space Exploration Telescope in the UK?

LEGO Space Exploration Telescope (Set #31378) is available from LEGO.com at £29.99. We're monitoring other UK retailers for availability. Check our recent price drops for updates.

Is LEGO Space Exploration Telescope being discontinued or retiring soon?

Yes — LEGO Space Exploration Telescope is flagged as retiring soon by LEGO. Once production ends and remaining stock sells through, prices on the secondary market typically climb well above RRP. If this set is on your list, the safest window is now while retailers still have stock. Browse our list of retiring LEGO sets to see what else is on the way out.

Is LEGO Space Exploration Telescope good value for money?

Comparing piece-count to price across the LEGO Creator 3-in-1 theme, this set scores 5.0 / 10 for value. That works out to about 10.8p per piece. That's roughly in line with the Creator 3-in-1 theme average. Compare against other contenders on our best-value LEGO sets page.