halo (from Ancient Greek ἅλως (hálōs) 'threshing floor, disk') is an optical phenomenon produced by light (typically from the Sun or Moon) interacting with...

Optical phenomena are any observable events that result from the interaction of light and matter. All optical phenomena coincide with quantum phenomena...

A glory is an optical phenomenon, resembling an iconic saint's halo around the shadow of the observer's head, caused by sunlight or (more rarely) moonlight...

artifacts appearing in photographic images and video recordings. Most optical analysis to date have concluded that the images are insects moving across...

In meteorology, a corona (plural coronae) is an optical phenomenon produced by the diffraction of sunlight or moonlight (or, occasionally, bright starlight...

The phenomenon persists in the present day, with the strange lights having been determined to be an atmospheric optical phenomenon. The phenomenon occurs...

discharges. Sprites are associated with various other upper-atmospheric optical phenomena including blue jets and ELVES. The earliest known report is by...

parhelion (plural parhelia) in atmospheric science, is an atmospheric optical phenomenon that consists of a bright spot to one or both sides of the Sun. Two...

for Strong Thermal Emission Velocity Enhancement) is an atmospheric optical phenomenon that appears as a purple and green light ribbon in the night sky,...

B. (1980). "Blue field entoptic phenomenon and blood velocity in the retinal capillaries". Journal of the Optical Society of America. 70 (10): 1234–38...