Ever wondered how a rainbow is formed? It all boils down to how sunlight interacts with water particles through a process of reflection and refraction. Since white light is composed of various colors with different wavelengths, during the refraction and reflection process from a water droplet, these colors become slightly separated and produce a beautiful rainbow colors that we see. | WeatherNation

Did you know a rainbow is a full circle? A rainbow is formed when sunlight is refracted (bent), reflected inside raindrops, and then refracted again as it exits. This process sends light out at a specific angle — about 42° from the direction opposite the sun — forming a cone of light. If you trace all those angles around your shadow, they form a complete circle. From the ground, the horizon cuts off the bottom half of the circle, so we usually see just a semicircular arc. You can see the entire

Check out this rare optical phenomenon, a sun dog in Minnesota! Sun dogs are colored spots of light that develop due to the refraction of light through ice crystals. #sundog #knowbefore | WeatherBug

Remarkable sun dog in Indiana! ☀️ Sun dogs are caused by the refraction of sunlight by ice crystals in the atmosphere. | AccuWeather