Week 1: Private Universe
Let's start by assessing my general understanding of our solar system. How do the phases of the moon occur? As the moon orbits around the earth the sun will always light up half of the moon, the half that is facing the sun. The phases occur because when the moon orbits around the earth we see the shadow side of the moon. For example if we had a new moon the moon is located between the earth and the sun, so us on earth only see the moon's shadow. On the other hand a full moon is when the earth is between the moon and the sun allowing for us on earth to see the fully lit side of the moon. What causes the seasons? This is simple, the tilt of the earth's axis. The earth's axis is not straight up and down it has a slight tilt of around 20 degrees. Due to the tilt in the winter the sun's rays hit the earth at an angle producing indirect light, where as in the summer the sun's rays hit the earth directly. This tilt also results in the sun in the sky for longer perio...