They can also appear horizontally like a halo. So rubbing your eyes all you want won't make it any less real. This tree-born natural phenomenon is stunning! Resembling the wall of a parent with a ...

As this effect is dependent on ice crystals in cirrus clouds—around 30 miles above ground—it explains why this natural phenomenon mainly exists in the winter. These tiny ice crystals are ...

Hong Kong on Tuesday witnessed a rare natural phenomenon, a halo around the sun, that can be experienced only when meteorological conditions are right. The Observatory posted pictures on its ...

The phenomenon is caused by the refraction of moonlight from ice crystals in the upper atmosphere. According to the Met Office, the halo can mean rainfall might be approaching. It added ...

The Met Office said the phenomenon was a type of halo formed when sunlight refracts through horizontal ice crystals, at such an angle that light enters through a flat top face and exits through a ...