Test Lesson by Julie Sullivan

Blue light is scattered in all directions by the tiny molecules of air in Earth's atmosphere. Blue is scattered more than other colors because it travels as shorter, smaller waves. This is why we see a blue sky most of the time. Closer to the horizon, the sky fades to a lighter blue or white.

We’ve all been stopped in our tracks by spectacular sun rises and sets. Gradually changing from yellow, to bright orange, and finally culminating in a fiery red ball, the surrounding mountains seem to glow. Although it borders on heresy to attempt to break down a sunset into simple physics, there’s a symphony going on behind the scenes.