How many pieces are in the Space Exploration Telescope?

Space Exploration Telescope contains 278 pieces.

What age is the Space Exploration Telescope recommended for?

This set is recommended for ages 8+.

When was the Space Exploration Telescope released?

Space Exploration Telescope was released in 2026.

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⚠ RETIRING SOON

LEGO Space Exploration Telescope set 31378

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🏛 Creator 3-in-1

Set #31378

Space Exploration Telescope

The Space Exploration Telescope is a fantastic display piece.

Before you buy

Who it's for: Ages 8+ · Intermediate build Ideal for space enthusiasts and LEGO fans looking for a detailed and enjoyable building experience.
Build: 278 pieces · about 4.5 hours Build time is an estimate.
Price: $34.99 list price · 12.6¢ per piece
Availability: Retiring soon · expected exit Dec 31, 2026

★★★★☆ 4.0 community rating from 14 ratings

Fans appreciate the detailed design and the 3-in-1 build options, making it a versatile set. Some find the color scheme a bit repetitive but overall a satisfying build and a great display piece.

$34.99

Best Price

$33.94

You Save

3% OFF

📝 Our Take

AI-assisted editorial summary, grounded in our LEGO database and public community discussions. How we use AI

The Space Exploration Telescope is a fantastic display piece. This 3-in-1 set offers a detailed telescope build with the added value of being able to rebuild it into two alternative models, providing hours of building fun and display options.

This set is perfect for space enthusiasts and LEGO builders of all ages. The build is engaging without being overly complex, making it a great project for families or individual builders looking for a rewarding experience. The final model looks great on a shelf or desk.

Skip this if you prefer minifigure-scale sets or complex Technic builds. If you're looking for a more challenging build experience or something with minifigures, consider the LEGO Ideas International Space Station 21321-1 or a larger Technic set.

✨ New

Ask BlockTalk about this set

AI assistant with full set data

BlockTalk

Hi! I'm BlockTalk, your LEGO expert. Ask me anything about the Space Exploration Telescope - building tips, investment potential, comparisons, or anything else!

Try asking:

How does this set compare to other LEGO telescopes in terms of detail and accuracy? What are some creative ways to display the completed telescope model? Is this set suitable for younger builders with some LEGO experience? How does the 3-in-1 functionality enhance the overall value of the set?

🧱 Building Experience

AI-assisted build estimate, grounded in our LEGO database and public community discussions. How we use AI

🧩

278

Pieces

⏱

4.5h

Estimated Build Time

📊

Intermediate

Difficulty

📏

27cm × 12cm × 19cm

Dimensions

Build Highlights:

Detailed telescope design with realistic features.
Engaging build process with clever use of parts.
3-in-1 functionality offers multiple building experiences.
Great display piece for showcasing your love of space exploration.

📈 Investment Analysis

AI-assisted investment analysis, grounded in our LEGO database and public community discussions. How we use AI

→ Price stable

Investment Grade

⏳ Retiring soon

The Space Exploration Telescope offers moderate investment potential. Its status as a Creator 3-in-1 set, combined with the enduring popularity of space exploration themes, suggests it will hold its value reasonably well. The piece count is decent for the price, and the availability of alternative builds may increase its appeal to a broader audience. However, its wide availability as a Creator set means appreciation will likely be gradual rather than rapid. Keep an eye on retirement announcements to maximize return.

Not Financial Advice: Content is for educational purposes only. Past performance doesn't guarantee future results. Full disclaimer

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The Space Exploration Telescope offers a unique building experience compared to sets with similar piece counts. While sets like LEGO City space-themed sets focus on playability with minifigures and vehicles, this Creator 3-in-1 set emphasizes a detailed display model and the added value of alternative builds. It's a great choice for builders who prioritize aesthetics and versatility.

📦 Parts Inventory

Official piece count: 278
Parts cataloged in this inventory: 90 unique parts, 278 pieces

Missing a piece? Check this set piece by piece, with look-alike colors flagged and element IDs for replacements.

Technic Pin Conne...

Part #: 10197 3× Dark Bluish Gray

Bar Holder with Clip

Part #: 11090 10× Black

Brick Special 1 x...

Part #: 11211 2× Black

Brick Special 1 x...

Part #: 11211 1× Dark Azure

Brick Curved 2 x ...

Part #: 11477 3× Light Bluish Gray

Tile, Star with S...

Part #: 11609 2× White

Plate Round 4 x 4...

Part #: 11833 2× Black

Plate Round 4 x 4...

Part #: 11833 2× White

Technic Beam 3 x ...

Part #: 14720 2× Black

Brick Curved 2 x ...

Part #: 15068 6× Black

Technic Axle 5 wi...

Part #: 15462 1× Reddish Brown

Tile Special 1 x ...

Part #: 15712 2× Black

Brick Round 2 x 2...

Part #: 17485 1× White

Technic Axle Pin ...

Part #: 18651 3× Black

Plate Special Rou...

Part #: 18674 2× Black

Brick Round 2 x 2...

Part #: 20953 1× Nougat

Bar 2L with Towball

Part #: 22484 3× Dark Bluish Gray

Plate Round Half ...

Part #: 22888 2× Medium Azure

Plate Round Half ...

Part #: 22888 2× Black

Technic Pin Conne...

Part #: 2393 2× Light Bluish Gray

Plate 2 x 2 Corner

Part #: 2420 2× Black

Tile 1 x 4 with G...

Part #: 2431 12× Black

Tile Special 1 x ...

Part #: 2432 1× Yellow

Part #: 24593 5× White

Tile 2 x 3

Part #: 26603 1× Black

Brick Special 1 x...

Part #: 26604 5× Black

Turntable 2 x 2 F...

Part #: 27448 2× White

Minifig Head, Glo...

Part #: 28621pr0005 1× Blue

Brick 2 x 2

Part #: 3003 1× Red

Brick 1 x 1

Part #: 3005 2× White

Plate 2 x 2

Part #: 3022 3× Black

Plate 1 x 2

Part #: 3023 6× Black

Plate 1 x 1

Part #: 3024 4× White

Brick Round 2 x 2...

Part #: 30361c 1× White

Plate Round Corne...

Part #: 30565 4× Dark Blue

Brick Round 1 x 1...

Part #: 3062b 1× White

Tile 1 x 2 with G...

Part #: 3069b 1× Dark Azure

Technic Beam 2 x ...

Part #: 3167 1× Dark Bluish Gray

Technic Axle 2 No...

Part #: 32062 1× Red

Technic Bush 1/2 ...

Part #: 32123b 8× Blue

Technic Gear 12 T...

Part #: 32270 2× Black

Technic Ball Joint

Part #: 32474 1× Dark Azure

Technic Ball Joint

Part #: 32474 1× Red

Technic Ball Joint

Part #: 32474 1× Dark Turquoise

Technic Ball Joint

Part #: 32474 1× Tan

Plate Special Rou...

Part #: 32828 3× Black

Plate 1 x 8

Part #: 3460 6× Black

Plate 1 x 8

Part #: 3460 3× Dark Azure

Bar 1L with Clip ...

Part #: 3484 2× Black

Plate Special 2 x...

Part #: 35442 2× Black

Plate Special 1 x...

Part #: 35480 1× White

Weapon Chakram / ...

Part #: 35485 1× Black

Weapon Chakram / ...

Part #: 35485 1× Pearl Gold

Technic Axle 12

Part #: 3708 1× Black

Plate 1 x 4

Part #: 3710 3× Dark Azure

Technic Axle Pin ...

Part #: 3749 2× Tan

Technic Pin Long ...

Part #: 42924 2× Blue

Technic Axle Pin ...

Part #: 43093 2× Blue

Technic Panel Dom...

Part #: 4412 1× Yellow

Brick Special 1 x...

Part #: 47905 1× White

Brick Round Corne...

Part #: 48092 4× Blue

Brick Round Corne...

Part #: 48092 4× Black

Technic Plate Rot...

Part #: 51138 3× Light Bluish Gray

Brick Sloped 30° ...

Part #: 54200 5× Black

Technic Axle Conn...

Part #: 59443 2× Black

Cone 1 x 1 [Top G...

Part #: 59900 1× Dark Turquoise

Plate Round 4 x 4...

Part #: 60474 1× White

Plate Special 1 x...

Part #: 60478 6× Light Bluish Gray

Window 1 x 2 x 2 ...

Part #: 60592 3× Black

Glass for Window ...

Part #: 60601pr0018 1× Trans-Clear

Glass for Window ...

Part #: 60601pr0019 1× Trans-Clear

Glass for Window ...

Part #: 60601pr0020 1× Trans-Clear

Plate Special 1 x...

Part #: 60897 6× Black

Plate Special 1 x...

Part #: 61252 2× Trans-Clear

Light Brick 2 x 3...

Part #: 62930 1× Trans-Clear

Bar 6L with Stop ...

Part #: 63965 1× Dark Bluish Gray

Plate Special 4 x...

Part #: 64799 1× Black

Weapon Hilt Symme...

Part #: 66909 3× Black

Brick Special 1 x...

Part #: 67329 1× White

Dome 1 x 1 x 2/3

Part #: 6908 1× Light Nougat

Technic Gear 20 T...

Part #: 69779 1× Dark Azure

Technic Brick 1 x...

Part #: 73230 5× Dark Azure

Technic Panel Dom...

Part #: 7343 1× Yellow

Bracket 1 x 1 - 1...

Part #: 73825 2× Black

Technic Gear Rack...

Part #: 78442 2× Black

Plate Round Corne...

Part #: 79491 2× White

Brick Round Corne...

Part #: 85080 28× White

Brick Round Corne...

Part #: 85080 4× Black

Plate Round 1 x 1...

Part #: 85861 9× Black

Brick Sloped 30° ...

Part #: 85984 2× White

Dome Hemisphere 4...

Part #: 86500 1× Trans-Clear

Plate 1 x 1 x 2/3...

Part #: 86996 2× Black

Bar 5L with Handl...

Part #: 87618 5× Black

Bar 3L

Part #: 87994 3× Black

Brick Round 2 x 2...

Part #: 92947 4× Black

Brick Curved 4 x ...

Part #: 93273 1× Black

Arm Skeleton [Ben...

Part #: 93609 1× Black

Brick Round 2 x 2...

Part #: 98100 1× White

Tile Round 1 x 1

Part #: 98138 1× White

Tile Special 1 x ...

Part #: 99563 2× Pearl Gold

This set offers a good selection of black and white pieces, useful for MOC builders. The inclusion of Dark Azure Technic Bricks adds a pop of color and functionality.

🛒 Where to Buy

eBay

✓ In Stock

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✓ In Stock

Compare on eBay →

$34.99

💎 Notable Parts

White Brick Round Corner 2 x 2 Macaroni with Stud Notch and Reinforced Underside [New Style] (28x) $4.20

Black Tile 1 x 4 with Groove (12x) $1.80

Black Bar Holder with Clip (10x) $2.00

Dark Azure Technic Brick 1 x 1 with Axle Hole (5x) $1.25

Blue Brick Round Corner 4 x 4 Macaroni Wide with 3 Studs (4x) $1.00

Est. BrickLink Part Value

$10.25

💡 MOC Potential

🚀 Detailed rocket launch platform

🌳 Botanical garden observatory

🏙 Modern art museum with abstract sculptures

Community Insights

Real opinions from Reddit and YouTube

What Reddit Says

No Reddit discussions found for this set.

What YouTubers Say

Based on 5 videos

3.0 /5

Mixed

0% positive

BlockTalk AI

Early YouTube videos on the LEGO Space Exploration Telescope (31378) are primarily neutral, focusing on the build process and instructions. Channels like All Bricked Up showcase the building of the set, while LEGO INSTRUCTIONS FOR YOU provides step-by-step guidance, but no strong opinions are yet evident.

LEGO Instructions - Creator - 31378 - Space Exploration Telescope (All Books)

LEGO INSTRUCTIONS FOR YOU • 1.4K views Review

Community Sentiment

Based on 5 YouTube reviews

Not enough Reddit data

YouTube

3.0 /5

Mixed

0% positive

Positive

Mixed

Critical

BlockTalk AI Analysis

What the Community Says

1 YouTube reviews

BlockTalk AI Summary

All Bricked Up documents the initial stages of the build, specifically bags 1 and 2, without providing a comprehensive review. LEGO INSTRUCTIONS FOR YOU offers building instructions, catering to those who prefer visual guidance.