A meteorological phenomenon appears in the sky when the sun shines onto droplets of moisture in the Earth’s atmosphere. A multi-colored arc in a spectrum of colors: Red, orange, yellow, green, blue, indigo and violet overlooks the sky. A rainbow can be observed anytime there are water drops in the air and sunlight shining from behind.

Image via Wikipedia: Lovely Rainbow overlooking the water.

 According to studies, the rainbow effect is also seen near waterfalls or fountains. In addition, Rainbows may also form in the spray created by waves. There are also rainbows that are much brighter than others. After doing some research, this is what I found. A supernumerary rainbow consists of several faint rainbows on the inner side of the primary rainbow, and very rarely also outside the secondary rainbow. The coolest thing about a supernumerary rainbow is that it has additional green and purple arcs inside the primary bow. In 1804, Thomas Young provided the first explanation of supernumerary rainbows.

A reflection rainbow is produced when sunlight reflects off a body of water before reaching the raindrops. This type of rainbow appears above the horizon. Usually, a reflection rainbow is rarely visible due to the combination of requirements according to studies.