A glory is a beautiful and somewhat mysterious optical phenomenon that appears as a series of concentric, rainbow-colored rings surrounding the shadow of the observer’s head, usually cast onto clouds or mist. The effect is similar in appearance to the halo often depicted around the heads of saints in religious artwork, giving it a mystical or otherworldly quality. This phenomenon occurs when light—typically sunlight, but occasionally moonlight—interacts with tiny, uniform water droplets in a cloud or mist bank. Unlike a traditional rainbow, which forms due to refraction and reflection within larger raindrops, a glory results from complex diffraction, backscattering, and interference of light waves within the smaller droplets.

A defining feature of a glory is that it is always centered on the antisolar point—the point directly opposite the sun from the viewer’s perspective which aligns with the shadow of the observer’s head. This means that the glory is a highly personal sight; no two people will see exactly the same one unless they are standing in the same spot. Because glories require a unique alignment of light, droplets, and viewing angle, they are most commonly seen from elevated positions such as mountaintops, tall buildings, or, most dramatically, from airplanes.

When viewed from an aircraft, the observer often sees the plane’s shadow projected onto the clouds below, surrounded by the luminous rings of a glory. This stunning sight has earned the nickname “The Glory of the Pilot.” Seeing a glory from the air creates a powerful connection between the viewer and the natural interplay of light and atmosphere. It’s a moment where physics, perspective, and beauty converge in the sky.