The sun appears to set when it vanishes over the western horizon as the Earth rotates away from the sun. Depending on the Earth's tilt at a particular time of year, the sun sets either slightly north or south of due west.
During the spring and fall equinoxes, when the tilt of the Earth is level with the sun, the sun sets at exactly due west. When the poles of the Earth are tilted either completely away from or towards the sun, the sun does not appear to set, leading to perpetual night during winter and months-long daylight during the summer.Learn More
The main source of energy for the planet is the sun. Solar energy includes light, radio waves and X-rays, all of which provide energy on Earth.Full Answer >
The Sun appears to move across the sky during the day due to the rotation of Earth along its axis. Because Earth rotates from east to west, the Sun first appears on the eastern horizon and then moves westward across the sky until it falls below the western horizon.Full Answer >
The sun has five distinct layers: the core, solar envelope, photosphere, chromosphere and corona. Unlike the Earth, the sun has no solid features, as it is too hot for them to persist. All of the sun's layers are either in the gaseous or plasma state.Full Answer >
The Earth orbits around the Sun at an astonishing 67,000 miles per hour. It takes the Earth 365 days to make a complete circle around the Sun.Full Answer >