Observe the scale of our solar system in this video from NASA. It is difficult to show both the size and distances of the planets on the same model, so this video provides two scale models. A background essay and teaching tips are also...

The enormity of the solar system can sometimes be too big to imagine. A scale model can help us visualize the size in an easy to understand way. Watch as scientists build a model of the solar system in a dessert just 7 miles in diameter!...