BISMARCK, N.D. (KFYR) - When it’s extremely cold and sunny, atmospheric optics can appear, including sun and moon dogs, halos ...

I PERCEIVE on further consideration that my suggestion (NATURE, January 5, p. 8) of a spherical wave-front in place of a plane one to account for the discrepancy between the coefficient of ...

When sunlight is bent by refraction, it separates into different colors, just like light through a prism. While a prism can make a dramatic rainbow, atmospheric refraction isn't that strong.

John Wheeler: Atmospheric illusions are not what they appear to be Because the light is getting bent before it reaches your eyes, you are seeing the light from the direction of its last bend.

For the first time in almost 5,000 years of observations, researchers have fully cataloged optical illusions created in the sky as light shines through ice crystals known as atmospheric halos. The ...

The green flash is a rare, brief optical event of green, yellow, and sometimes blue that colors the horizon, occurring at sunrise or sunset most often in the western U.S. Refraction and dispersion ...

GRAND RAPIDS, Mich — Viewers across West Michigan were in awe of the patches of rainbow popping up across the area on Sunday. Sundogs are a result of the refraction of light when the sun's rays ...

The green flash is caused by refraction and dispersion. Refraction is the bending of light, while dispersion scatters it. “Earth's atmosphere is not uniform – not only is it curved, but its density ...

Atmospheric refraction is reason the rising moon appears out of round. Refraction — the bending of light — occurs near the horizon because our line of sight passes strictly through the lowest ...

Like a rainbow, the striking moon ring is caused by a refraction, or splitting of light, and also by a reflection of moonlight from tiny ice crystals in Earth's atmosphere, according to Earth Sky ...

THE proposition that “the course of a nearly horizontal ray of light in the lower part of the atmosphere is a circular arc having a radius of 14,900 geographical miles” has been stated by Mr ...