Underworld...

...at the Uppsala Light Festival. This blip shows only a part of the artwork - more to read here. Unfortunately, it is not possible for you to listen to the sounds belonging to this light art....

Edit: A colour version as an extra. Sometimes I have difficulties to choose a blip of the day. This time the choice was between two photos, both of them in colour and in b&w versions. My solution: I let my husband B make the decision!