On cold, sunny days, tiny ice crystals in the atmosphere can create breathtaking displays like halos, sundogs, and light pillars.

When temperatures get close to 0°, any moisture in the atmosphere can turn into little tiny ice crystals called diamond dust. You will often see the ice crystals floating in the air, almost resembling ...

Optical illusions occur naturally in different habitats and conditions across the world. Cloud formations can sometimes make it seem like there's an ocean or a UFO in the sky. Whether it is salt flats ...

Residents of Russia’s Sakhalin Island were left astonished after witnessing a rare and striking sight in the sky that ...

A rare optical illusion and weather phenomenon was spotted Sunday morning, January 25. The phenomenon is called light pillars ...

JACKSONVILLE, Fla. — A optical illusion appeared off the First Coast this week, making it seem as though a ship was hovering above and out of the water. The phenomenon, known as a superior mirage, ...

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 ...

The science behind natural optical phenomena—colors in the sky, rainbows, halos, coronas, iridescence, glories, glitter patterns and auroras—will be the topic of a free talk at Rochester Institute of ...

Residents of Russia's Sakhalin region were treated to a surreal sight recently: what looked like two suns rising side by side ...

A new study explores the behavior of photons, the elementary particles of light, as they encounter boundaries where material properties change rapidly over time. This research uncovers remarkable ...