Not only the sun will always shine after rain but sometimes even a rainbow appears. While rainbows seem magical and some people believe that a treasure can be found at the end of a rainbow, there is a scientific explanation for this phenomenon. The colors of a rainbow are a result of sun light that is reflected, refracted and dispersed by water droplets depending on the wavelength according to a prism. This rainbow was catched at a sunny day in Iceland where clouds usually dominate the sky.