The belief that a red sun is a bad omen is rooted in folklore and superstition rather than scientific fact. In reality, the color of the sun can change due to various atmospheric conditions and phenomena, and it does not necessarily indicate any impending danger or negative events.
A red sun can occur during certain weather conditions, such as sunrise or sunset, when the sunlight passes through a thicker layer of the Earth's atmosphere. This scattering of shorter wavelengths of light results in the sun appearing red or orange. Similarly, atmospheric particles like dust, pollution, or smoke from wildfires can also cause the sun to appear red.
While a red sun may create an eerie or unusual atmosphere, it is not inherently associated with specific negative outcomes. It's important to approach such beliefs with a critical mindset and rely on scientific understanding and evidence when interpreting natural phenomena.