In our modern society, natural phenomena can sometimes give rise to concerns or misunderstandings. A phenomenon that occurs regularly, and can sometimes cause unrest, is when the sky suddenly darkens and changes color to a deep, dark shade. While this image may strike fear in some, there is a scientific explanation that offers reassurance. The darkening of the sky is an event that is observed worldwide and occurs frequently. These phenomena can occur on a regular basis depending on geographical location and season. Scientists have conducted extensive research into the cyclical nature of these events and have determined that it follows a natural and predictable pattern.