Crystals form on the surface of a soap bubble as it freezes
Mother Nature provides an unusual and beautiful sight. A soap bubble freezes in low temperatures.
No, the star you saw is not some sort of filter or special effect, its sugar in the soap mix that creates a crystal-like appearance as the bubble freezes.
The woman who filmed the particular clip made the soap bubbles herself.
She took a cup of water and mixed in two tablespoons each of dish soap, corn syrup and regular sugar.
She said the syrup helps keep the bubble from bursting.