Discover the science and wonder of rainbows with The Westport Library’s comprehensive Rainbows Resource Guide. Learn how rainbows form through the natural interplay of sunlight and water droplets via refraction and reflection, creating the vibrant spectrum we see after rainstorms. Explore the best conditions to spot rainbows, why they arch across the sky, and delve into fascinating phenomena such as moonbows. This colorful guide explains why rainbows cannot be predicted, highlights the diversity of nature’s optical displays, and provides links to further educational resources perfect for learners of all ages.