Kirlian photography is a technique that creates images of an object's electrical discharge, which can look like an aura or halo. How it works Corona discharge: When an object is charged with electricity, the charge leaks into the surrounding air. This creates a coronal discharge, or gas discharge, in the air. Light pattern: The light pattern of the discharge depends on the object's shape, electrical conductivity, and the air's composition. Kirlian photography is also known as electrophotography