* Earth's Tilt: The Earth is tilted on its axis at approximately 23.5 degrees. This tilt is the primary reason we have seasons.
* Arctic Circle's Location: The Arctic Circle is located at 66.5 degrees north latitude. This line marks the southernmost point where the sun can remain above the horizon for 24 hours during the summer solstice and below the horizon for 24 hours during the winter solstice.
* Sun's Path: Because of the Earth's tilt, the sun's rays hit the Earth at different angles throughout the year. In the summer, the Northern Hemisphere is tilted towards the sun, causing the sun to appear higher in the sky and days to be longer. However, even at the summer solstice, the sun's rays will never be directly overhead (vertical) at the Arctic Circle. This is because the Arctic Circle is beyond the point where the sun reaches its highest point in the sky.
In simpler terms: Imagine the Earth as a spinning top, and the sun's rays as a flashlight shining on it. The Earth's tilt means the flashlight is shining at an angle, and the Arctic Circle is far enough away from the equator (where the flashlight shines most directly) that the light never shines straight down.
This is why the Arctic Circle experiences long periods of daylight during the summer and long periods of darkness during the winter.
