In December of 2015, Your Star shone in the night sky above Stockholm City Hall to commemorate Nobel Week and to celebrate new knowledge, dreams, and light. Held aloft by a large helium balloon, the star consists of a specially designed spherical casing tipped by a bright LED lamp. The light is powered by solar energy that was collected in midsummer and stored in a battery, thus using the summer sunlight to brighten the darkness of winter.