Rainbows can sometimes appear after storms, but how are these colorful weather displays created? "Only three things are needed to make a rainbow: sunlight, water, and, surprisingly, you," AccuWeather ...

Rainbows are optical phenomena resulting from the interaction of sunlight, water droplets, and the human visual system, not physical objects. Scientific understanding of rainbows developed over ...

Rainbow Waterfall, or Waiānuenue, on Hawai'i's Big Island is a natural wonder formed by volcanic activity and the erosive power of the Wailuku River. Its name comes from frequent rainbows created by ...