The 22° Halo is a striking optical phenomenon that manifests as a circular ... This phenomenon reminds us of the mysteries of the natural world and the tricks light can play on our perception.

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 ...

Observatory says halos are created when sunlight hits ice crystals suspended high in the atmosphere Scientific officer at meteorological service says high clouds are required, where ice crystals ...

That bright, circular halo is a natural optical phenomenon known as a sun halo, and while it may look mystical, there’s a straightforward scientific explanation. According to Keith Berger ...