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Space Exploration Telescope

Space Exploration Telescope

31378-1·LEGO·2026·103 parts

Used Avg
$23.00
New Avg
$42.50
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About Space Exploration Telescope

Space Exploration Telescope (31378-1) is a LEGO LEGO set from 2026 valued at $23.00 on BrickLink. It contains 103 cataloged parts.

Seller notes

  • Sealed copies sell for $42.50 vs $23.00 used — a 85% premium. If you have this set new in sealed box (NISB), price it accordingly.

Parts (103)

Technic, Axle and Pin Connector Hub with 2 Perpendicular Axles
Technic, Axle and Pin Connector Hub with 2 Perpendicular Axles
×3
Bar Holder with Clip
Bar Holder with Clip
×10
Brick, Modified 1 x 2 with Studs on 1 Side
Brick, Modified 1 x 2 with Studs on 1 Side
×2
Brick, Modified 1 x 2 with Studs on 1 Side
Brick, Modified 1 x 2 with Studs on 1 Side
Slope, Curved 2 x 1 x 2/3
Slope, Curved 2 x 1 x 2/3
×3
Plate, Round 1 x 1 with Star and Small Pin Hole
Plate, Round 1 x 1 with Star and Small Pin Hole
×3
Plate, Round 4 x 4 with 2 x 2 Round Open Center
Plate, Round 4 x 4 with 2 x 2 Round Open Center
×2
Plate, Round 4 x 4 with 2 x 2 Round Open Center
Plate, Round 4 x 4 with 2 x 2 Round Open Center
×2
Technic, Liftarm, Modified H-Shape Thick 3 x 5 Perpendicular
Technic, Liftarm, Modified H-Shape Thick 3 x 5 Perpendicular
×2
Slope, Curved 2 x 2 x 2/3
Slope, Curved 2 x 2 x 2/3
×6
Technic, Axle  5L with Stop
Technic, Axle 5L with Stop
Tile, Modified 1 x 1 with Open O Clip
Tile, Modified 1 x 1 with Open O Clip
×2
Brick, Round 2 x 2 with Pin Holes
Brick, Round 2 x 2 with Pin Holes
Technic, Axle  2L with Pin with Friction Ridges
Technic, Axle 2L with Pin with Friction Ridges
×3
Tile, Round 2 x 2 with Open Stud
Tile, Round 2 x 2 with Open Stud
×2
Brick, Round 2 x 2 Sphere with Stud / Robot Body
Brick, Round 2 x 2 Sphere with Stud / Robot Body
Bar   1L with Tow Ball
Bar 1L with Tow Ball
×3
Plate, Round Half 4 x 8
Plate, Round Half 4 x 8
×2
Plate, Round Half 4 x 8
Plate, Round Half 4 x 8
×2
Technic, Pin Connector Perpendicular 3L with 2 Pins
Technic, Pin Connector Perpendicular 3L with 2 Pins
×2
Plate 2 x 2 Corner
Plate 2 x 2 Corner
×2
Tile 1 x 4
Tile 1 x 4
×12
Tile, Modified 1 x 2 with Bar Handle
Tile, Modified 1 x 2 with Bar Handle
Tile, Modified 1 x 2 with Bar Handle
Tile, Modified 1 x 2 with Bar Handle
Tile, Modified 1 x 2 with Bar Handle
Tile, Modified 1 x 2 with Bar Handle
Cylinder Half 2 x 4 x 2 with 1 x 2 Cutout
Cylinder Half 2 x 4 x 2 with 1 x 2 Cutout
×5
Tile 2 x 3
Tile 2 x 3
Brick, Modified 1 x 1 with Studs on 2 Sides, Adjacent
Brick, Modified 1 x 1 with Studs on 2 Sides, Adjacent
×5
Turntable 2 x 2 Square Base
Turntable 2 x 2 Square Base
×2
Brick 2 x 2
Brick 2 x 2
Brick 1 x 1
Brick 1 x 1
×2
Plate 2 x 2
Plate 2 x 2
×3
Plate 1 x 2
Plate 1 x 2
×6
Plate 1 x 1
Plate 1 x 1
×5
Brick, Round 2 x 2 x 2 Robot Body with Bottom Axle Holder (x Shape / + Orientation)
Brick, Round 2 x 2 x 2 Robot Body with Bottom Axle Holder (x Shape / + Orientation)
Plate, Round Corner 4 x 4
Plate, Round Corner 4 x 4
×4
Brick, Round  1 x 1
Brick, Round 1 x 1
Tile 1 x 2
Tile 1 x 2
Technic, Liftarm, Modified U-Shape Thick 2 x 3 Perpendicular
Technic, Liftarm, Modified U-Shape Thick 2 x 3 Perpendicular
Technic, Axle  2L Notched
Technic, Axle 2L Notched
Technic, Plate Rotor 3 Blade with Smooth Ends and 6 Studs (Propeller)
Technic, Plate Rotor 3 Blade with Smooth Ends and 6 Studs (Propeller)
×3
Technic, Gear 12 Tooth Double Bevel
Technic, Gear 12 Tooth Double Bevel
×2
Technic Ball Joint
Technic Ball Joint
Technic Ball Joint
Technic Ball Joint
Technic Ball Joint
Technic Ball Joint
Technic Ball Joint
Technic Ball Joint
Bar   1L with 1 x 1 Round Plate with Hollow Stud
Bar 1L with 1 x 1 Round Plate with Hollow Stud
×4
Plate 1 x 8
Plate 1 x 8
×6
Plate 1 x 8
Plate 1 x 8
×3
Plate, Round 2 x 2 Gear 6 Tooth
Plate, Round 2 x 2 Gear 6 Tooth
×2
Plate, Round 1 x 2 with Open Studs
Plate, Round 1 x 2 with Open Studs
Minifigure, Weapon Hoop Blade / Chakram
Minifigure, Weapon Hoop Blade / Chakram
Minifigure, Weapon Hoop Blade / Chakram
Minifigure, Weapon Hoop Blade / Chakram
Minifigure, Head without Face with Lime Globe World Map Pattern
Minifigure, Head without Face with Lime Globe World Map Pattern
Technic, Axle 12L
Technic, Axle 12L
Plate 1 x 4
Plate 1 x 4
×3
Technic, Axle  1L with Pin without Friction Ridges with Round Hole
Technic, Axle 1L with Pin without Friction Ridges with Round Hole
×2
Plate, Modified 1 x 1 with Open O Clip Thick (Vertical Grip)
Plate, Modified 1 x 1 with Open O Clip Thick (Vertical Grip)
×6
Technic Bush 1/2 Smooth
Technic Bush 1/2 Smooth
×9
Technic, Axle  1L with Pin with Friction Ridges
Technic, Axle 1L with Pin with Friction Ridges
×2
Cylinder Hemisphere 5 x 5, Axle Hole in Center and 2 Pin Holes
Cylinder Hemisphere 5 x 5, Axle Hole in Center and 2 Pin Holes
Cone 1 x 1 with Top Groove
Cone 1 x 1 with Top Groove
Brick, Modified 1 x 1 with Studs on 2 Sides, Opposite
Brick, Modified 1 x 1 with Studs on 2 Sides, Opposite
Brick, Round Corner 4 x 4 Macaroni with 3 Studs
Brick, Round Corner 4 x 4 Macaroni with 3 Studs
×4
Brick, Round Corner 4 x 4 Macaroni with 3 Studs
Brick, Round Corner 4 x 4 Macaroni with 3 Studs
×4
Bar   1L with Clip Mechanical Claw - Cut Edges and Hole on Side
Bar 1L with Clip Mechanical Claw - Cut Edges and Hole on Side
×2
Slope 30 1 x 1 x 2/3
Slope 30 1 x 1 x 2/3
×6
Electric, Light Brick 2 x 3 x 1 1/3 with Trans-Clear Top and Yellow LED Light (Glows Orange)
Electric, Light Brick 2 x 3 x 1 1/3 with Trans-Clear Top and Yellow LED Light (Glows Orange)
Plate, Round 4 x 4 with Hole
Plate, Round 4 x 4 with Hole
Plate, Modified 1 x 2 with Bar Handle on End
Plate, Modified 1 x 2 with Bar Handle on End
×6
Window 1 x 2 x 2 Flat Front
Window 1 x 2 x 2 Flat Front
×3
Glass for Window 1 x 2 x 2 Flat Front with Crescent Moon and Dots on Black Background Pattern
Glass for Window 1 x 2 x 2 Flat Front with Crescent Moon and Dots on Black Background Pattern
Glass for Window 1 x 2 x 2 Flat Front with Star, Sparkles and Dots on Black Background Pattern
Glass for Window 1 x 2 x 2 Flat Front with Star, Sparkles and Dots on Black Background Pattern
Glass for Window 1 x 2 x 2 Flat Front with Saturn and Dots on Black Background Pattern
Glass for Window 1 x 2 x 2 Flat Front with Saturn and Dots on Black Background Pattern
Plate, Modified 1 x 1 with Open O Clip (Horizontal Grip)
Plate, Modified 1 x 1 with Open O Clip (Horizontal Grip)
×2
Bar   6L with Stop Ring
Bar 6L with Stop Ring
Plate, Modified 4 x 4 with 2 x 2 Open Center
Plate, Modified 4 x 4 with 2 x 2 Open Center
Technic, Axle Connector 2L (Smooth with x Hole + Orientation)
Technic, Axle Connector 2L (Smooth with x Hole + Orientation)
×2
Technic, Pin 3L with Friction Ridges
Technic, Pin 3L with Friction Ridges
×2
Minifigure, Weapon Hilt Smooth Extended
Minifigure, Weapon Hilt Smooth Extended
×3
Brick, Modified 1 x 2 x 1 2/3 with Studs on Side and Ends
Brick, Modified 1 x 2 x 1 2/3 with Studs on Side and Ends
Brick, Round 1 x 1 x 2/3 Dome Top
Brick, Round 1 x 1 x 2/3 Dome Top
×2
Technic, Gear 20 Tooth
Technic, Gear 20 Tooth
Technic, Brick 1 x 1 with Axle Hole
Technic, Brick 1 x 1 with Axle Hole
×5
Cylinder Hemisphere 5 x 5 with 2 Axle Holes
Cylinder Hemisphere 5 x 5 with 2 Axle Holes
Bracket 1 x 1 - 1 x 2 Inverted
Bracket 1 x 1 - 1 x 2 Inverted
×2
Technic, Gear Rack 6 x 6 Curved
Technic, Gear Rack 6 x 6 Curved
×2
Plate, Round Corner 2 x 2 with 1 x 1 Cutout
Plate, Round Corner 2 x 2 with 1 x 1 Cutout
×2
Brick, Round Corner 2 x 2 Macaroni with Stud Notch and Reinforced Underside
Brick, Round Corner 2 x 2 Macaroni with Stud Notch and Reinforced Underside
×28
Brick, Round Corner 2 x 2 Macaroni with Stud Notch and Reinforced Underside
Brick, Round Corner 2 x 2 Macaroni with Stud Notch and Reinforced Underside
×4
Plate, Round 1 x 1 with Open Stud
Plate, Round 1 x 1 with Open Stud
×10
Slope 30 1 x 2 x 2/3
Slope 30 1 x 2 x 2/3
×2
Cylinder Hemisphere 4 x 4
Cylinder Hemisphere 4 x 4
Brick, Modified 1 x 1 x 2/3 with Open Stud
Brick, Modified 1 x 1 x 2/3 with Open Stud
×2
Bar   5L with Handle (Friction Ram)
Bar 5L with Handle (Friction Ram)
×5
Bar   3L (Bar Arrow)
Bar 3L (Bar Arrow)
×4
Brick, Round 2 x 2 with Axle Hole and Grille / Fluted Profile
Brick, Round 2 x 2 with Axle Hole and Grille / Fluted Profile
×4
Slope, Curved 4 x 1 x 2/3 Double
Slope, Curved 4 x 1 x 2/3 Double
Arm Skeleton, Bent with Clips (Horizontal Grip)
Arm Skeleton, Bent with Clips (Horizontal Grip)
Cone 2 x 2 Truncated
Cone 2 x 2 Truncated
Tile, Round 1 x 1
Tile, Round 1 x 1
×2
Minifigure, Utensil Ingot 1 x 2
Minifigure, Utensil Ingot 1 x 2
×2
Information Leaflet for Batteries - Light Brick (6535986)
Information Leaflet for Batteries - Light Brick (6535986)

Common questions about Space Exploration Telescope

How much is LEGO Space Exploration Telescope (31378-1) worth?

Space Exploration Telescope sells for an average of $23.00 used and $42.50 new/sealed on BrickLink based on 6 months of completed sales. Current retail availability may affect secondary market prices. Actual prices vary with completeness — missing minifigures or key parts will lower the value.

Is LEGO Space Exploration Telescope (31378-1) retired?

Space Exploration Telescope was released in 2026. It should still be widely available at retail from LEGO and authorized retailers.

How do I check if my Space Exploration Telescope set is complete?

Use the parts list on this page to check every piece. For the minifigures specifically, you can use the brick'em scanner to identify each figure from a photo and confirm it matches what should be in this set. Missing pieces can be individually sourced on BrickLink.

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