42179 Planet Earth and Moon in OrbitLEGO Technic Planet Earth and Moon in Orbit 42179 10+ Celebrate the relationship between the Earth, the Sun and the Moon by building this interactive LEGO Technic Planet Earth and Moon in Orbit. See how the Moon orbits around the Earth while the Earth orbits around the Sun. Turn the crank to see the Moon and Earth move in realistic orbits. Printed months and moon phases show the progress of the Earth, Sun and Moon through the year. Launch Date 3 1