The luminous ring is known scientifically as a 22-degree halo, named for the angle at which sunlight bends as it passes through six-sided ice crystals. As the light enters and exits the crystals, it ...

Bright patches of light, known as sun dogs, appear when sunlight bends through hexagonal ice crystals in high-altitude clouds ...

Pilots flying over the Himalayas often see three suns at once, a stunning phenomenon called sundog. This natural light show is no cockpit trick or sci-fi scene, just perfect mountain weather meeting ...

Interstellar comet 3I/ATLAS, a visitor older than the Sun, has stunned scientists with a colossal, puzzling X-ray cloud ...

Light from either the sun or moon refracts through the ice crystals. A 22-degree halo then forms around the sun or moon. A 22-degree halo is the most common halo to form during refraction. In rare ...

Several viewers sent in photos of a halo around the moon on Wednesday night. What is this phenomenon and is it connected to ...

Stargazers enjoyed a double whammy with vibrant Northern Lights and a dazzling lunar halo in just one night. Indeed a lucky ...

The last supermoon of 2025 rose on Thursday night and for some sky gazers it included a Moon halo, as Simon King explains ...

Not one, but two stunning optical effects were spotted overhead in Minnesota as the state was gripped by freezing ...

A 2023 astronaut photo shows the moment the Alabama River briefly morphed into an undulating golden serpent, similar in shape ...

A halo (from Ancient Greek meaning “circle, disk”) is a luminous ring around a powerful light source. They typically form ...