Space Exploration Telescope (31378-1)
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Set details
Name: Space Exploration TelescopeSet number: 31378-1
Year: 2026
Theme: Creator
Number of parts: 278
Number of part types: 102
Age rating: 8+
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 7 planets that can be spun around. This can be rebuilt into an adjustable microscope toy or a UFO model with posable antennae and legs thatflip 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 underneaththe 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.
Browse all 278 parts in set 31378-1 with individual pricing from BrickLink or Brick Owl.
Pricing information known of 95/102 parts.
Missing pricing information on the following items.
| Part | Color | Quantity | |
|---|---|---|---|
![]() | Glass for Window 1 x 2 x 2 Flat with Stars on Black Background print ![]() | ||
![]() | Glass for Window 1 x 2 x 2 Flat with Crescent Moon on Black Background print ![]() | ||
![]() | Glass for Window 1 x 2 x 2 Flat with Planet, Stars on Black Background print ![]() | ||
![]() | Minifig Head, Globe, Bright Green Land print ![]() | ||
![]() | Brick Round 2 x 2 Sphere with Stud [Plain] ![]() | ||
![]() | Technic Panel Dome 5 x 5 with Pin Holes ![]() | ||
![]() | Light Brick 2 x 3 x 1 1/3 with Dark Bluish Gray Base [Yellow LED] ![]() | ||
Compare the value of buying Space Exploration Telescope as a complete set versus the total value of all parts individually.
BrickLink ![]() | |||||
| Condition | Timespan | Avg price | Items sold | Inventory value | Ratio |
| New | 6 months | ? | ? | ? | |
| Used | 6 months | ? | ? | ? | |
Brick Owl ![]() | ||||
| Condition | Timespan | Avg price | Inventory value | Ratio |
| New | Current | 1.28 | ||
| 6 months | ? | ? | ||
| 1 year | ? | ? | ||
| Used | Current | ? | ? | |
- 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 onan 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
Find the cheapest offers for set 31378-1 from sellers on secondary marketplaces like Brick Owl and eBay.
| Item | Price | |
|---|---|---|









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![Image of part Technic Beam 3 x 5 Thick [90° Offset Centre Beam Holes]](https://cdn.rebrickable.com/media/parts/elements/6390379.jpg)



![Image of part Technic Beam 2 x 3 Thick [90° Offset Centre Beam Hole]](https://cdn.rebrickable.com/media/parts/elements/6475314.jpg)







![Image of part Plate Special 1 x 1 with Clip Horizontal [Thick Open O Clip]](https://cdn.rebrickable.com/media/parts/elements/6429708.jpg)
![Image of part Technic Gear 20 Tooth with Axle Hole [+ Opening]](https://cdn.rebrickable.com/media/parts/elements/6396480.jpg)



![Image of part Brick Round Corner 2 x 2 Macaroni with Stud Notch and Reinforced Underside [New Style]](https://cdn.rebrickable.com/media/parts/elements/4164471.jpg)











![Image of part Brick Round 2 x 2 [Grill]](https://cdn.rebrickable.com/media/parts/elements/6024730.jpg)





![Image of part Cone 1 x 1 [Top Groove]](https://cdn.rebrickable.com/media/parts/elements/6482735.jpg)



![Image of part Plate Special 1 x 2 with Handle on End [Closed Ends]](https://cdn.rebrickable.com/media/parts/elements/4515369.jpg)
![Image of part Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip]](https://cdn.rebrickable.com/media/parts/elements/6330189.jpg)




![Image of part Slope Curved 2 x 1 No Studs [1/2 Bow]](https://cdn.rebrickable.com/media/parts/elements/6028813.jpg)





![Image of part Tile Special 1 x 2 with Sloped Walls AKA Money / Gold Bar [Ingot]](https://cdn.rebrickable.com/media/parts/elements/6207933.jpg)










![Image of part Arm Skeleton [Bent / 2 Clips]](https://cdn.rebrickable.com/media/parts/elements/6326681.jpg)


![Image of part Technic Axle Connector Smooth [with x Hole + Orientation]](https://cdn.rebrickable.com/media/parts/elements/4512363.jpg)
![Image of part Bar 1L with Clip [Cut Edges and One Side Hole] [Full Clip]](https://cdn.rebrickable.com/media/parts/elements/6439039.jpg)


























