Houses information about rays and shadows, water droplets, rainbows, ice halos, and high atmosphere. With links and resources.

Compares personal photographs of ice halos with computer model simulations to show the different arcs and bands.

Details the hard core scientific research on halos on an amateur basis. With diagrams, drawings, and photographs.

Presents photographs, diagrams, and explanations of the physics behind phenomena such as rainbows, sky color, coronas, and mirages.

Offers photographs and explanations for rainbows, halos, noctilucent clouds, and diffraction phenomena.

Presents photographs, illustrations, and descriptions of how rays, pillars, halos, and rainbows are created.

Extensive photographic gallery of effects caused by ice crystals and water droplets, at sunrise, sunset, and twilight, and other refraction, reflection, and diffraction examples.