Many people enjoy building LEGOs no matter their age. The same goes for space-related stuff. When those two come together, the perfect product appears. Unfortunately, besides NASA aircraft and some ...

Six tiny gears, a few fancy pins, and some clever casting are what it takes to build this tiny orrery. And patience — a lot of patience, too. As model solar systems go, this one is exceptionally small ...

An orrery is a dynamic model of the solar system, designed to show the positions, relative orbits and distances of the planets about the Sun. It shows the orbital periods of objects revolving around ...