Even though panning is a technique that’s mainly used in sports photography, you can experiment with it elsewhere too. For example you can get interesting abstract pictures by using panning on autumn leaves—that is, on something static.
Both at night and at many times throughout the daytime, you can run into situations where there’s not enough light for a good picture. That’s especially true when the days are short and the nights are long. When you don’t have access to daylight or streetlights, you can also use a flash.