LEGO Space Exploration Telescope (31378)

Creator 3-in-1 · 278 pieces

From $39.00 at Amazon.com.au · 22% off

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

LEGO Space Exploration Telescope (31378)

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Compare prices (Australia)

Regular price $49.99

See it at Amazon.com.au, $39.00

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

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

Also retiring soon in Creator 3-in-1

Price history

Lowest price today: $39.00; at Amazon.com.au
Lowest we’ve recorded: $34.40; Target, 10 Oct 2026
LEGO’s regular price: $49.99; today’s lowest is 22% off
Tracked since: 8 Oct 2026; 5 price changes since

Price records (12)

23 October 2026 · Myerout of stock$39.99
22 October 2026 · Amazon.com.au$39.00
22 October 2026 · Amazon.com.au$39.99
13 October 2026 · Bricks Megastore$49.99
12 October 2026 · Myer$39.99
11 October 2026 · Target$43.00
10 October 2026 · Toyworld$49.99
10 October 2026 · Myer$42.49
10 October 2026 · Target$34.40
10 October 2026 · Big W$39.00
10 October 2026 · Amazon.com.au$39.00
8 October 2026 · LEGO.com Australia$49.99

Prices at LEGO.com Australia, Amazon.com.au, Target, Big W, Kmart, Myer, Toyworld, Build & Play and Bricks Megastore, checked daily. A line breaks when a store was out of stock or not selling the set.

LEGO Space Exploration Telescope 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 AUDStore

Australia(this page)Best priceAmazon.com.au$39.00$39.00Amazon.com.au
CanadaLEGO.com CanadaCAD 44.99$45.72LEGO.com Canada
NederlandIntertoysEUR 29.99$47.92Intertoys

Show all 13 countries

Exchange rates of 22 October 2026.

Resale value

What the LEGO Space Exploration Telescope actually sold for on BrickLink, the LEGO-owned marketplace, in the last 6 months.

New

$67.01

Median of 3 sales (worldwide), from $48.29 to $67.01

+34% vs LEGO’s regular price ($49.99)

Used

$25.67

Median of 2 sales (US sellers), from $25.67 to $28.52

-49% vs LEGO’s regular price ($49.99)

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

Set details

Pieces: 278
Minifigures: None
Ages: 8+
Released: 2026
Set number: 31378
Theme: Creator 3-in-1
Price per piece: 14.0cat today’s lowest price
LEGO.com rating: 4.5
LEGO Insiders points: 225

LEGO Space Exploration Telescope 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 Space Exploration Telescope parts list

278 pieces in 102 different parts and colors.

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×485080
×492947
×33022
×33460
×33710
×310197
×311477
×318651
×322484
×332828
×351138
×360592
×366909
×387994
×22393
×22420
×23005
×23484
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×211211
×211609
×211833
×211833
×214720
×215712
×218674
×222888
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×242924
×243093
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×278442
×279491
×285984
×286996
×299563
×12432
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×13003
×13062b
×13069b
×13167
×13708
×14412
×16908
×17343
×111211
×115462
×117485
×120953
×126603
×128621pr0005
×130361c
×132062
×132474
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×135480
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×147905
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×162930
×163965
×164799
×167329
×169779
×186500
×193273
×193609
×198100
×198138

Parts list: Rebrickable.

About the LEGO Space Exploration Telescope

Boys 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.

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

Description: LEGO.com.

LEGO Space Exploration Telescope: FAQ

Is the LEGO Space Exploration Telescope retiring?

Yes: the LEGO Space Exploration Telescope is retiring soon. LEGO flags it “Retiring soon” on LEGO.com Australia (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 Space Exploration Telescope?

The lowest price we found today is $39.00 at Amazon.com.au, out of 6 stores selling it today (regular price $49.99). Prices change often: this page is updated every day.

Should I buy the LEGO Space Exploration Telescope now or wait?

Retiring by 31 December 2026: buy it while you can. LEGO is retiring it: we expect it gone from LEGO.com Australia by 31 December 2026, in 70 days. The best price today is $39.00 at Amazon.com.au, 22% below LEGO’s regular price. New copies of retired sets tend to get scarcer and pricier.