We have all seen coloured soap suds from an incoming light source but this is the first time I have ever seen this light so uniformed and concentric. There is a lot of science here just in this glass of soapsuds, just like when a corona is seen around the Sun or Moon it has to do with the Suns light.
But in this case the light from the sun is not being refracted through ice crystals,
but interacting with the thin layer of soap film and producing this amazing effect right here in a glass.
I wonder what you will see next time you wash up the dishes :-)
The image was taken on the 18th January at Lennox Head in NSW with a Canon GX7 Mark11 camera, exposure 1/160th second and ISO 125.