Across the world, there are naturally occurring optical illusions that captivate spectators. Cloud formations can sometimes make it seem like there's an ocean or a UFO in the sky. Whether it is salt ...

The sky can produce some incredible sights, and one of those features is an optical phenomenon known as a sun dog or parhelion. Watch the video above as Meteorologist Mitchel Coombs breaks down this ...

An optical illusion is a visual phenomenon where our perception of thinking about an image differs from objective reality.

MISSOULA, Mont. — While up in the mountains, have you ever looked down on a cloud or fog bank below and seen concentric rings of light surrounding your shadow? A viewer recently shared a photo of this ...

The internet is blowing a collective gasket over a triple-tiered eye test in which objects seem to disappear and appear right before the viewer's eyes. Twitter It’s the multiheaded hydra of optical ...

Earth's passage through the plane of Saturn's rings, occurring roughly every 15 years, causes the rings to appear nearly edge-on. The next such event in March 2025 will be poorly observable due to ...

A video of a unique optical phenomenon known as a "glory" spotted from a plane has gone viral on TikTok. Heather Reedy, a 37-year-old registered nurse based in Virginia, spotted the mesmerizing sight ...

The Bedford County Sheriff's Office placed Jefferson Forest High School, Forest Middle School, and Forest Elementary School on perimeter lockdowns Tuesday. VDOT tests elk-detection system to prevent ...

An optical illusion is a visual phenomenon where the brain misinterprets what the eyes perceive, creating a false or ...

Optical lattice clocks are devices that measure the passing of time via the frequency of light that is absorbed or emitted by ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. SAN DIEGO — A parhelia hovered above the ...