Space Exploration Telescope (31378-1)

LEGO set 31378-1 Space Exploration Telescope - Image 1

Price Comparison

Find the cheapest deal for Space Exploration Telescope across 3 retailers in The United States.

Shop	Price
	$34.99
	$34.99
	$59.99 + $25.00 (71%)

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Set details

Name: Space Exploration Telescope
Set number: 31378-1
Year: 2026
Theme: Creator
Number of parts: 278
Number of part types: 102
Age rating: 8+
Retail price: $34.99
Retirement date: 31-12-2026

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.

Price History

Track how the lowest available price for set 31378-1 in The United States has changed over time.

Parts

Browse all 278 parts in set 31378-1 with individual pricing from BrickLink or Brick Owl.

Price source:

Value of parts: $58.51
Pricing information known of 99/102 parts.

	Color	Quantity	Average price	Total	Value
Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced	Blue	9	$0.79	$7.14	9 x $0.79 $7.14
Technic Gear Rack 1/4 Circle 6 x 6, 15 Teeth	Black	2	$2.54	$5.08	2 x $2.54 $5.08
Dome 1 x 1 x 2/3	Light Nougat	2	$1.67	$3.33	2 x $1.67 $3.33
Cylinder Half 2 x 4 x 2 with 1 x 2 Cutout	White	5	$0.58	$2.91	5 x $0.58 $2.91
Dome Hemisphere 4 x 4	Trans-Clear	1	$2.39	$2.39	1 x $2.39 $2.39
Brick Round Corner 4 x 4 Macaroni Wide with 3 Studs	Black	4	$0.57	$2.27	4 x $0.57 $2.27
Brick Round Corner 2 x 2 Macaroni with Stud Notch and Reinforced Underside [New Style]	White	28	$0.07	$1.85	28 x $0.07 $1.85
Technic Beam 3 x 5 Thick [90° Offset Centre Beam Holes]	Black	2	$0.81	$1.61	2 x $0.81 $1.61
Plate Round Corner 2 x 2 with 1 x 1 Cutout	White	2	$0.73	$1.45	2 x $0.73 $1.45
Tile 1 x 4 with Groove	Black	12	$0.12	$1.43	12 x $0.12 $1.43
Minifig Head, Globe, Bright Green Land print	Blue	1	$1.26	$1.26	1 x $1.26 $1.26
Technic Panel Dome 5 x 5 with Axle Holes	Yellow	1	$1.20	$1.20	1 x $1.20 $1.20
Technic Brick 1 x 1 with Axle Hole	Dark Azure	5	$0.22	$1.12	5 x $0.22 $1.12
Plate 1 x 8	Black	6	$0.17	$1.03	6 x $0.17 $1.03
Brick Special 1 x 1 with Studs on 2 Adjacent Sides	Black	5	$0.19	$0.93	5 x $0.19 $0.93
Brick Round Corner 4 x 4 Macaroni Wide with 3 Studs	Blue	4	$0.22	$0.90	4 x $0.22 $0.90
Technic Ball Joint	Tan	1	$0.90	$0.90	1 x $0.90 $0.90
Technic Beam 2 x 3 Thick [90° Offset Centre Beam Hole]	Dark Bluish Gray	1	$0.90	$0.90	1 x $0.90 $0.90
Bar Holder with Clip	Black	10	$0.08	$0.79	10 x $0.08 $0.79
Technic Pin Connector Hub Perpendicular 3L with 2 Pins	Light Bluish Gray	2	$0.40	$0.79	2 x $0.40 $0.79
Glass for Window 1 x 2 x 2 Flat with Planet, Stars on Black Background print	Trans-Clear	1	$0.66	$0.66	1 x $0.66 $0.66
Plate Special 1 x 1 with Clip Horizontal [Thick Open O Clip]	Trans-Clear	2	$0.33	$0.66	2 x $0.33 $0.66
Technic Gear 20 Tooth with Axle Hole [+ Opening]	Dark Azure	1	$0.63	$0.63	1 x $0.63 $0.63
Tile, Star with Stud Holder, Pin Hole	White	3	$0.21	$0.63	3 x $0.21 $0.63
Plate Round 4 x 4 with 2 x 2 Round Opening	White	2	$0.30	$0.61	2 x $0.30 $0.61
Glass for Window 1 x 2 x 2 Flat with Crescent Moon on Black Background print	Trans-Clear	1	$0.58	$0.58	1 x $0.58 $0.58
Brick Special 1 x 2 with 2 Studs on 1 Side	Dark Azure	1	$0.56	$0.56	1 x $0.56 $0.56
Glass for Window 1 x 2 x 2 Flat with Stars on Black Background print	Trans-Clear	1	$0.53	$0.53	1 x $0.53 $0.53
Plate Round 1 x 1 with Open Stud	Black	10	$0.05	$0.53	10 x $0.05 $0.53
Bar 5L with Handle (Friction Ram)	Black	5	$0.11	$0.53	5 x $0.11 $0.53
Brick Curved 2 x 2 x 2/3	Black	6	$0.08	$0.48	6 x $0.08 $0.48
Window 1 x 2 x 2 Flat Front	Black	3	$0.16	$0.48	3 x $0.16 $0.48
Weapon Hilt Symmetric	Black	3	$0.15	$0.44	3 x $0.15 $0.44
Bracket 1 x 1 - 1 x 2 Inverted	Black	2	$0.21	$0.42	2 x $0.21 $0.42
Brick Round Corner 2 x 2 Macaroni with Stud Notch and Reinforced Underside [New Style]	Black	4	$0.11	$0.42	4 x $0.11 $0.42
Technic Plate Rotor 3 Blade with Smooth Ends, 6 Studs, 1 Bottom Ridge (Propeller)	Light Bluish Gray	3	$0.13	$0.40	3 x $0.13 $0.40
Plate 1 x 2	Black	6	$0.07	$0.40	6 x $0.07 $0.40
Cone 1 x 1 [Top Groove]	Dark Turquoise	1	$0.38	$0.38	1 x $0.38 $0.38
Technic Axle 12	Black	1	$0.36	$0.36	1 x $0.36 $0.36
Plate 1 x 8	Dark Azure	3	$0.12	$0.36	3 x $0.12 $0.36
Plate Round Half 4 x 8	Black	2	$0.17	$0.34	2 x $0.17 $0.34
Technic Ball Joint	Dark Turquoise	1	$0.33	$0.33	1 x $0.33 $0.33
Brick Round 2 x 2 [Grill]	Black	4	$0.08	$0.32	4 x $0.08 $0.32
Bar 3L	Black	4	$0.08	$0.32	4 x $0.08 $0.32
Bar 2L with Towball	Dark Bluish Gray	3	$0.11	$0.32	3 x $0.11 $0.32
Weapon Chakram / Hoop Blade / Ring	Black	1	$0.30	$0.30	1 x $0.30 $0.30
Brick Special 1 x 2 with 2 Studs on 1 Side	Black	2	$0.15	$0.29	2 x $0.15 $0.29
Plate Special 2 x 2 Splat Gear, 6 Teeth	Black	2	$0.13	$0.26	2 x $0.13 $0.26
Plate Round 4 x 4 with 2 x 2 Round Opening	Black	2	$0.13	$0.26	2 x $0.13 $0.26
Plate 1 x 1 x 2/3 with Open Stud	Black	2	$0.13	$0.26	2 x $0.13 $0.26
Plate 1 x 1	White	5	$0.05	$0.26	5 x $0.05 $0.26
Plate Round Corner 4 x 4	Dark Blue	4	$0.07	$0.26	4 x $0.07 $0.26
Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip]	Black	6	$0.04	$0.24	6 x $0.04 $0.24
Plate Special 1 x 2 with Handle on End [Closed Ends]	Light Bluish Gray	6	$0.04	$0.24	6 x $0.04 $0.24
Technic Ball Joint	Dark Azure	1	$0.24	$0.24	1 x $0.24 $0.24
Brick Special 1 x 1 with Studs on 2 Sides	White	1	$0.22	$0.22	1 x $0.22 $0.22
Plate Special Round 1 x 1 with Hollow Stud and Horizontal Bar 1L	Black	4	$0.05	$0.21	4 x $0.05 $0.21
Plate 1 x 4	Dark Azure	3	$0.07	$0.20	3 x $0.07 $0.20
Brick Curved 2 x 1 No Studs [1/2 Bow]	Light Bluish Gray	3	$0.07	$0.20	3 x $0.07 $0.20
Tile 2 x 3	Black	1	$0.19	$0.19	1 x $0.19 $0.19
Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)	Black	6	$0.03	$0.16	6 x $0.03 $0.16
Plate Special Round 2 x 2 with Center Stud (Jumper Plate)	Black	2	$0.08	$0.16	2 x $0.08 $0.16
Brick 1 x 1	White	2	$0.08	$0.16	2 x $0.08 $0.16
Technic Gear 12 Tooth Double Bevel	Black	2	$0.08	$0.16	2 x $0.08 $0.16
Weapon Chakram / Hoop Blade / Ring	Pearl Gold	1	$0.16	$0.16	1 x $0.16 $0.16
Plate 2 x 2	Black	3	$0.05	$0.16	3 x $0.05 $0.16
Technic Pin Connector Hub with 2 Perpendicular Axles	Dark Bluish Gray	3	$0.05	$0.16	3 x $0.05 $0.16
Brick Special 1 x 2 x 1 2/3 with 8 Studs on 3 Sides	White	1	$0.15	$0.15	1 x $0.15 $0.15
Brick Round 2 x 2, Pin Holes	White	1	$0.13	$0.13	1 x $0.13 $0.13
Plate 2 x 2 Corner	Black	2	$0.07	$0.13	2 x $0.07 $0.13
Tile Special 1 x 2 with Sloped Walls AKA Money / Gold Bar [Ingot]	Pearl Gold	2	$0.07	$0.13	2 x $0.07 $0.13
Brick Sloped 30° 1 x 2 x 2/3	White	2	$0.07	$0.13	2 x $0.07 $0.13
Technic Axle Pin 3L with Friction Ridges Lengthwise and 2L Axle	Black	3	$0.04	$0.12	3 x $0.04 $0.12
Arm Skeleton [Bent / 2 Clips]	Black	1	$0.12	$0.12	1 x $0.12 $0.12
Tile 1 x 2 with Groove	Dark Azure	1	$0.11	$0.11	1 x $0.11 $0.11
Bar 1L with Clip [Cut Edges and One Side Hole] [Full Clip]	Black	2	$0.05	$0.11	2 x $0.05 $0.11
Brick Round 2 x 2 x 2 Robot Body, Axle Holder '+' Orientation	White	1	$0.11	$0.11	1 x $0.11 $0.11
Turntable 2 x 2 Female	White	2	$0.05	$0.11	2 x $0.05 $0.11
Plate Round Half 4 x 8	Medium Azure	2	$0.05	$0.11	2 x $0.05 $0.11
Technic Axle Connector Smooth [with x Hole + Orientation]	Black	2	$0.05	$0.11	2 x $0.05 $0.11
Tile Special 1 x 1 with Clip with Rounded Edges	Black	2	$0.05	$0.11	2 x $0.05 $0.11
Plate Round 4 x 4 with Pin Hole	White	1	$0.09	$0.09	1 x $0.09 $0.09
Bar 6L with Stop Ring	Dark Bluish Gray	1	$0.09	$0.09	1 x $0.09 $0.09
Plate Special 4 x 4 with 2 x 2 Opening	Black	1	$0.09	$0.09	1 x $0.09 $0.09
Tile Round 1 x 1	White	2	$0.04	$0.08	2 x $0.04 $0.08
Technic Axle Pin without Friction Ridges Lengthwise	Tan	2	$0.04	$0.08	2 x $0.04 $0.08
Brick Round 2 x 2 Truncated Cone	White	1	$0.08	$0.08	1 x $0.08 $0.08
Brick 2 x 2	Red	1	$0.08	$0.08	1 x $0.08 $0.08
Brick Curved 4 x 1 Double, No Studs	Black	1	$0.08	$0.08	1 x $0.08 $0.08
Technic Ball Joint	Red	1	$0.07	$0.07	1 x $0.07 $0.07
Plate Special 1 x 2 Rounded with 2 Open Studs	White	1	$0.07	$0.07	1 x $0.07 $0.07
Technic Pin Long with Friction Ridges Lengthwise, 1 Center Slot	Blue	2	$0.03	$0.05	2 x $0.03 $0.05
Technic Axle Pin with Friction Ridges Lengthwise	Blue	2	$0.03	$0.05	2 x $0.03 $0.05
Brick Round 1 x 1 Open Stud	White	1	$0.05	$0.05	1 x $0.05 $0.05
Tile Special 1 x 2 with Handle	Yellow	1	$0.04	$0.04	1 x $0.04 $0.04
Technic Axle 5 with Stop	Reddish Brown	1	$0.04	$0.04	1 x $0.04 $0.04
Tile Special 1 x 2 with Handle	Red	1	$0.03	$0.03	1 x $0.03 $0.03
Tile Special 1 x 2 with Handle	Blue	1	$0.03	$0.03	1 x $0.03 $0.03
Technic Axle 2 Notched	Red	1	$0.03	$0.03	1 x $0.03 $0.03

Missing pricing information on the following items.

	Color	Quantity
Light Brick 2 x 3 x 1 1/3 with Dark Bluish Gray Base [Yellow LED]	Trans-Clear	1
Technic Panel Dome 5 x 5 with Pin Holes	Yellow	1
Brick Round 2 x 2 Sphere with Stud [Plain]	Nougat	1

Compare the value of buying Space Exploration Telescope as a complete set versus the total value of all parts individually.

BrickLink

Ratio: what the parts sell for, over what the set sells for. Above 1× the parts are worth more than the set.

New · 6 months ?

Set ? · parts $62.53

Used · 6 months ?

Set ? · parts $40.38

Brick Owl

New · Current 1.2×

Set $60.40 · parts $72.71

New · 6 months ?

Set ? · parts $53.52

New · 1 year ?

Set ? · parts $58.51

Used · Current ?

Set ? · parts $60.97

Items sold, 6 months, new, both marketplaces ?

BrickLink
Condition	Timespan	Avg price	Items sold	Inventory value	Ratio
New	6 months	?	?	$62.53	?
Used	6 months	?	?	$40.38	?

Brick Owl
Condition	Timespan	Avg price	Inventory value	Ratio
New	Current	$60.40	$72.71	1.2
	6 months	?	$53.52	?
	1 year	?	$58.51	?
Used	Current	?	$60.97	?

Combined 6 Month Sales Volume (New)
Total items sold	?

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.

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. As an eBay Partner Network Affiliate and Brick Owl Affiliate, I earn from qualifying purchases.

Brick Owl and eBay marketplace offers.

BrickLink history of 0 sales with 0 total item quantity. Item condition: New.

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