Stretching from Topsfield in Washington County to the St. John Valley along U.S. Route 1, it is the largest complete, designed-to-scale solar system model in the world.

Add Yahoo as a preferred source to see more of our stories on Google. Conventional images of the Earth and the moon place them close together, the moon hovering, seemingly, right over our planet's ...

The scale of the Solar System is already overwhelming, but it is only the beginning. From the Moon and Mars to Voyager, the Milky Way, and the cosmic web, this journey shows how small Earth is inside ...

A scale model of the solar system, with each planet depicted in relief on individual square granite markers installed atop concrete bases embedded in the ground. Each planet bears a laser etched ...