Explore the movements of our solar system with LEGO® Technic 42179 Planet Earth and Moon in Orbit. This 526-piece interactive model demonstrates the relationship between the Earth, Moon and Sun using a hand-operated mechanism that puts the celestial bodies in motion. Turn the crank to see the Earth orbit the Sun while the Moon travels around the Earth, with printed month and moon-phase indicators helping illustrate how these cycles change throughout the year. Combining LEGO® Technic engineering with an engaging introduction to astronomy, this distinctive model is ideal for space enthusiasts, curious builders and educational display.

Key Features

• 526-piece LEGO® Technic set: Build an interactive mechanical model of the Earth, Moon and Sun.

• Realistic orbital movements: Turn the crank to demonstrate the Earth’s orbit around the Sun and the Moon’s orbit around the Earth.

• Rotating Earth: The model incorporates Earth’s rotation as part of its mechanical demonstration.

• Moon-phase indicator: Follow the different phases of the Moon as the mechanism moves through its cycle.

• Month indicator: Printed month markings help demonstrate the Earth’s position around the Sun throughout the year.

• Hands-on astronomy: Provides a visual and mechanical way to explore the relationship between the Earth, Moon and Sun.

• LEGO® Technic engineering: Gears and moving components reveal how interconnected mechanisms can create complex motion.

• Educational display model: Combines an engaging building experience with a model that can continue to demonstrate astronomical concepts after construction.

• Space-themed décor: The colorful Earth, Moon and Sun create a distinctive display for a bedroom, classroom, office or LEGO® collection.

• Designed for young space enthusiasts: Created for builders ages 10 and up with an interest in planets, astronomy and engineering.

• 2024 release: Introduced as part of the LEGO® Technic collection, bringing a very different subject to a theme best known for vehicles and machinery.

• Impressive display size: The completed model measures over 24 cm (9 in.) high, 33 cm (12.5 in.) long and 18 cm (7 in.) wide.

Why You’ll Love It

LEGO® Technic 42179 Planet Earth and Moon in Orbit stands apart from traditional Technic vehicles by using gears and mechanical movement to demonstrate something much larger—the motion of our planet and Moon through space. Turning the crank brings the model to life, while the month and moon-phase indicators add an educational dimension that makes it more than simply a display piece. With its unusual astronomy theme, visible mechanical functions and colorful celestial bodies, 42179 is a fascinating choice for LEGO® fans who enjoy space, science and discovering how things move.

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