A halo develops when light enters one side of a columnar ice crystal and exits through another side. The light is refracted when it enters the ice crystal and once again when it leaves the ice crystal.
Cascading loops spiral above an active region on the sun in an extreme-ultraviolet image sent back to Earth by NASA's Solar Dynamics Laboratory on Jan. These loop structures are made of superheated plasma, just one of which is the size of several Earths
Another solar halo picture taken in Punta Gorda, Florida
"Smeared skies, Lake Ontario, Canada" It’s one of a series by photographer Matt Molloy. His “timestack” technique uses timelapse video footage to create a single still where the clouds look like brushstrokes.
There must be a new Pope! Heavenly pictures show the sun ringed by a HALO