Can you see a full circle rainbow?

Yes, a full circle rainbow can be seen under certain conditions, typically from a high vantage point like an airplane or a mountain. This phenomenon occurs when sunlight refracts and reflects off water droplets in the atmosphere, creating a circular arc of colors. However, from the ground, we usually see only a semicircular arc because the horizon obstructs the lower part. Full circle rainbows are more commonly referred to as "glories" when viewed from above clouds or mist.