Across the Ozarks, many people noticed an unusual sight in the sky on Tuesday. A partial rainbow near the sun. The optical illusion is most commonly referred to as a sundog, or a mock sun. Sundogs ...

Have you ever looked up in the sky and noticed colored spots on either one or both sides of the sun? Bright spots that looked like tiny rainbows? If so, you probably saw a sun dog, also known as mock ...

There’s nothing more beautiful than a glorious sunset, especially when different colors are dancing in the skies. But what do those colors mean and why do we see only certain colors? It starts with ...

DALLAS — The fall equinox is here (Sept. 22), which we associate with equal amount of daylight and nighttime: 12 hours of daylight and 12 hours of nighttime as the sun is directly over the equator. We ...

When the right conditions come into place, the atmosphere can provide us with stunning visual effects. In order to understand the cause of what we’re seeing, let’s establish the difference between ...

Sun dogs, with a scientific name of perhelion, are either of two colored luminous spots that appear at roughly 22 degrees on both sides of the sun at the same elevation, according to the National ...

Sun dogs in August? We usually associate sun dogs with frigid winter weather, but they can happen any time of year, even when temperatures are in the 90s. Sun dogs are caused by a layer of ice ...

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 ...

As the sun dips below the horizon and the light starts to dim, lucky observers may spot a rare, brief flash of emerald. This is the "green flash," which can sometimes be seen right after sunset or ...

Each March and September, the point directly beneath the Sun crosses the equator, marking the equinoxes. While equinox comes from the Latin aequus (equal) and nox (night), the date of equal day, known ...

A rare and mysterious halo was filmed over a snow-capped mountain in Sweden, with the footage shared in a viral social media post. As posted by user @TheFigen_ on Twitter on October 24, the eerie ...

A skier in the right place at the right time managed to capture an incredible weather phenomenon, known as a sun dog, on camera. The rare sight is also known as a mock sun, and appears at 22 degrees ...