Beyond the standard rainbow, there are several fascinating variations. One such type is the double rainbow, where a second, fainter arc appears outside the primary one, with its colors reversed due to an extra reflection inside the raindrop. Another rare phenomenon is the supernumerary rainbow, which consists of additional faint bands of colors appearing inside the main rainbow due to wave interference of light. Some rainbows, known as moonbows, occur at night when moonlight, rather than sunlight, interacts with water droplets, creating a dimmer yet equally mesmerizing arc.
Rainbows can also take on unusual shapes depending on atmospheric conditions. For example, fogbows appear as pale, ghostly arcs in foggy environments, as the water droplets involved are much smaller than those in typical rainbows. Circumhorizontal arcs, sometimes mistaken for "fire rainbows," occur when sunlight refracts through ice crystals in high-altitude clouds, producing a spectrum of colors across the sky. Whether they form after rain, around waterfalls, or in misty air, rainbows continue to captivate and inspire people worldwide with their stunning beauty and scientific wonder. Shutdown123