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LEGO Technic Planet Earth and Moon in Orbit (42179)

by LEGO · Ages 9–12 · Building

No confirmed recall for this toy.

We check it against CPSC recalls every night; our recall list runs through September 24, 2026. Possible matches are reviewed by a person before anything shows here. Always check the model number on the box at cpsc.gov/Recalls.

Why we picked it

A Technic model of the Earth and Moon going round the Sun. Turn the crank and the Earth spins on its axis while the Moon circles it and both travel round the Sun; a ring of months and a ring of moon phases on the frame track the year. It is a build with gears and a working mechanism, and when it is done it sits on a shelf and explains something.

Why it made our list: ten-year-olds want builds that do something, this one teaches how a year and a month work while it does it, and it was a 2025 Toy of the Year finalist in the educational category. Released in March 2024, so it has real reviews.

Before you buy: LEGO's age grade is 10 and up, and at 526 pieces it is several sessions. Check the set number (42179) against the listing, since LEGO retires sets and resellers list similar ones. Small parts throughout.

Before you buy

  • Check the age grade on the box; it can differ from ours.
  • If younger children share the room, check for small parts.
  • Look up the model number at cpsc.gov/Recalls before first use.