You might have noticed a halo or ring around the moon, and you may have wondered what it was. Here is everything to know about moon and lunar halos.

The ring is actually an optical illusion. It is caused when the moon light refracts off ice crystals in a thin veil of cirrus clouds. Those crystals create a giant lens 20,000 feet above us. They're ...

Like a rainbow, the striking moon ring is caused by a refraction, or splitting of light, and also by a reflection of moonlight from tiny ice crystals in Earth's atmosphere, according to Earth Sky ...

It has an ‘Infinite Halo’ ring light on the back, which surrounds a rather interesting speaker. The Ulefone Armor 21 has a ‘Infinite Halo’ ring light on the back.

The halo, known as an Einstein ring, encircles a galaxy 590 million light-years away, considered close by cosmic standards. A light-year is 5.8 trillion miles.

A scientist recently snapped a series of shining arcs and halos of light surrounding the sun in the sky above the U.K., including an exceptionally rare ring of light that circled the entire sky.

The ring is actually an optical illusion. It is caused when the moon light refracts off ice crystals in a thin veil of cirrus clouds. Those crystals create a giant lens 20,000 feet above us.