"Light of the futureIt is getting brighter and brighter on earth. The light bulb has changed life dramatically. It is now a thing of the past and its successors, especially LED technology, make it possible for many regions to shine brightly for almost 24 hours a day.Bright street lamps that emit light in all directions - every night billions of insects die there, migratory birds lose their orientation, and even we humans experience that artificial light influences our sleep because we are tuned to a day-night rhythm. Day/brightness means activity, in the night/at darkness the organism switches to recovery. But in metropolises it gets brighter and brighter, video screens and billboards compete until midnight for the favour of the customers and activate our body when it should be recovering.Research is being conducted worldwide to find ways to reduce the flood of light to a healthy level. Physicists, biologists, physicians and engineers are working on the lighting of the future - a light that neither wastes energy nor unnecessarily illuminates the night sky, does not kill insects and, thanks to special color spectra, also lets people sleep undisturbed. After all, it is not a question of making cities completely dark. It's about lighting them more sustainably and intelligently.At the first meeting (kick off), the international research project ""Loss of the Night"" will be presented to the students, among other things with a touring exhibition. They get to know the app ""Loss of the Night"" and apply it. There will be an exchange about the importance of lighting and lighting situation in the respective partner cities.In the meantime, the pupils scientifically record how bright the respective region really is, whether there is light pollution and analyse the actual state. A networking with politicians takes place to find out whether there are already measures for reduction.At the next meeting an exchange of the determined values for light pollution in the respective region takes place via the data of the app ""Loss of Night"". The effects of light pollution will be presented and discussed by the individual partners on the basis of the selected priorities.Ideas for reducing light pollution are then collected and together we develop a vision of the light of the future.Until the final meeting, work will continue on the implementation of the concrete project: ""How can light pollution be reduced in my city?"" These project results will be presented at the final meeting of all participants.These ideas are presented to local politicians."