Mars Mission Science Kit (45202-1) is a Learning at Home LEGO set released in 2026 with 933 pieces. Browse the parts list, minifigures, and verify loose bricks with our free scanner. Collectors browsing Learning at Home sets use this inventory to verify loose parts, compare color variants, and read official build manuals without downloading PDFs. This set includes 4 minifigures and 277 unique part types.
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Buying checklist
Quick context before you buy this set used or verify a marketplace listing.
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Release year
2026
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Catalog scale
933 parts listed · 277 inventory lines tracked
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Minifigures
4 in this set's inventory — verify completeness when buying used
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Build manual
Digital booklet available on this page — use it to verify bag contents
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Build complexity
Large set — expect sticker sheets or multiple subassemblies; inspect photos closely
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Shipping weight (est.)
~1,621 g for parts inventory (excludes box/minifig packaging)
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Before you buy used
Run the completion checker, compare photos to the inventory, and check live listings for sealed pricing
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Market value
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Building instructions
4 official booklets — read on BrickID
Book 1 of 4 · US Letter Book 2 of 4 · US Letter Book 3 of 4 · US Letter Book 4 of 4 · US Letter
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Minifigures in Mars Mission Science Kit
Parts in this set
277 parts · page 1 of 6 · updating…
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Antenna 1 x 4 with Flat Top3957b · ×2 · Black -
Antenna 8H Whip2569 · ×1 · Black -
![Arm Mechanical with 2 Clips [Battle Droid]](https://cdn.rebrickable.com/media/parts/elements/4211658.jpg)
Arm Mechanical with 2 Clips [Battle Droid]30377 · ×4 · Light Bluish Gray -
![Arm Mechanical with Clip [Thick Support]](https://cdn.rebrickable.com/media/parts/elements/6551263.jpg)
Arm Mechanical with Clip [Thick Support]98313 · ×8 · Dark Blue -
Bar 1 x 12 with 1 x 2 Plate End with Solid Studs and 1 x 1 Round Plate End42445 · ×1 · Light Bluish Gray -
Bar 1 x 3 (Radio Handle, Phone Handset)6190 · ×1 · Dark Bluish Gray -
![Bar 1L with Clip [Cut Edges and One Side Hole] [Full Clip]](https://cdn.rebrickable.com/media/parts/elements/6439041.jpg)
Bar 1L with Clip [Cut Edges and One Side Hole] [Full Clip]3484 · ×11 · Light Bluish Gray -
Bar 4L (Lightsaber Blade / Wand)30374 · ×1 · Yellow -
Bar 4L (Lightsaber Blade / Wand)30374 · ×4 · White -
Bar 5L with Handle (Friction Ram)87618 · ×1 · Black -
Bar Holder with Clip11090 · ×4 · White -
Bar Holder with Hole and Bar Handle23443 · ×17 · Dark Blue -
Bracket 1 x 2 - 1 x 299781 · ×4 · Dark Blue -
Bracket 1 x 2 - 1 x 2 Inverted99780 · ×4 · White -
Bracket 1 x 2 - 2 x 244728 · ×3 · White -
Bracket 1 x 2 - 2 x 2 Inverted99207 · ×4 · Dark Blue -
Bracket 1 x 2 - 2 x 2 Inverted99207 · ×2 · White -
Bracket 5 x 2 x 2 1/3 with Holes, Inside Stud Holder76766 · ×6 · White -
Brick 1 x 13005 · ×2 · Trans-Light Blue -
Brick 1 x 13005 · ×4 · Dark Turquoise -
Brick 1 x 23004 · ×10 · Coral -
Brick 1 x 23004 · ×1 · Dark Bluish Gray -
Brick 1 x 23004 · ×6 · Dark Blue -
Brick 1 x 2 x 2 with Inside Stud Holder3245c · ×2 · Dark Turquoise -
Brick 1 x 33622 · ×4 · White -
Brick 1 x 43010 · ×4 · Dark Blue -
Brick 1 x 63009 · ×1 · White -
Brick 1 x 63009 · ×2 · Dark Tan -
Brick 2 x 23003 · ×12 · Dark Turquoise -
Brick 2 x 23003 · ×4 · Coral -
Brick 2 x 23003 · ×1 · White -
Brick 2 x 23003 · ×1 · Dark Bluish Gray -
Brick 2 x 2 Corner2357 · ×4 · Dark Tan -
Brick 2 x 33002 · ×2 · Dark Blue -
Brick 2 x 43001 · ×9 · White -
Brick 2 x 43001 · ×11 · Coral -
Brick 2 x 43001 · ×1 · Dark Tan -
Brick 2 x 43001 · ×1 · Dark Blue -
Brick 2 x 62456 · ×1 · Dark Bluish Gray -
Brick 2 x 62456 · ×2 · Dark Blue -
Brick and Axle Separator v2.096874 · ×1 · Dark Turquoise -
Brick Curved 1 x 1 x 2/3 Double Curved Top, No Studs49307 · ×1 · Dark Turquoise -
![Brick Curved 2 x 1 No Studs [1/2 Bow]](https://cdn.rebrickable.com/media/parts/elements/6258075.jpg)
Brick Curved 2 x 1 No Studs [1/2 Bow]11477 · ×1 · Coral -
![Brick Curved 2 x 1 No Studs [1/2 Bow]](https://cdn.rebrickable.com/media/parts/elements/6249427.jpg)
Brick Curved 2 x 1 No Studs [1/2 Bow]11477 · ×1 · Dark Turquoise -
Brick Curved 2 x 2 x 2/315068 · ×1 · Dark Bluish Gray -
Brick Curved 2 x 2 x 2/315068 · ×2 · Dark Blue -
Brick Curved 2 x 2 x 2/315068 · ×3 · Dark Turquoise -
Brick Curved 3 x 1 No Studs50950 · ×2 · Dark Turquoise