LEGO Technic: the Solar System Planets in Orbit set arrives in January 2027 (42254)

Published on 2 November 2026 at 20:42

Arnaud Bruckler

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LEGO has revealed a new space-themed Technic set: Solar System Planets in Orbit (42254). It follows on from Planet Earth and Moon in Orbit (42179) and this time covers the whole solar system. The set is aimed at children aged 10 and over and at astronomy fans.

LEGO Technic: the Solar System Planets in Orbit set arrives in January 2027 (42254)

The model has 572 pieces. It is a mechanical orrery: the Sun sits at the top of a column of black discs, and the eight planets, from Mercury to Neptune, are fixed to the ends of jointed arms that turn around it. Each disc carries the name of its planet, Saturn has its rings, and a red crank at the base drives the gear mechanism. Printed plates give facts about the Sun, Uranus and Neptune. The set is due in January 2027 and its product page is already live on the official shop.