India’s first multi-wavelength astronomy observatory, AstroSat, has marked a significant milestone by completing a decade of successful scientific observations since its launch by the Indian Space Research Organisation (ISRO) on September 28, 2015. Over the past ten years, AstroSat has enabled groundbreaking discoveries, including the detection of far-ultraviolet photons from galaxies 9 billion light-years away and insights into fast-spinning black holes. With a robust user base of approximately 3,400 scientists and students from 57 countries, AstroSat has not only advanced astrophysics research but also popularized space science education across 132 Indian universities. Originally designed for a five-year mission, AstroSat continues to function effectively, underscoring India’s growing capabilities in space exploration and its contributions to global scientific knowledge.