As Pluto is finally added to the University of Arizona's scale model solar system, a new study suggests how the dwarf planet's cold heart was originally broken.

Dwarf planets Haumea and Makemake are the latest additions to the Maine Solar System Model, billed as the largest solar system model in the western hemisphere.

2. Activity 1: Solar System Model (30 minutes) Hands-on Activity: Students will create a model of the solar system using Styrofoam balls, paint, and string.

Santa Clara County will soon have a large solar energy system in its own backyard. VCI Energy, a newcomer to the renewable energy industry, will develop the first large-scale solar energy and ...