The Space Junk Sign visually demonstrates the consequences of space pollution through the first constellations made of space debris. These constellations come to life through web-based virtual observatories, AR application integration, and immersive planetarium experiences. The project uses iconic visualizations to simplify the data so that people of different cultures and educational levels can understand the subject. Ultimately, it underscores the need to preserve a resource-outer space-that is essential to achieving all the Sustainable Development Goals. Case from IF official website, only for case sharing