Indian student Suhani Gupta has developed a free online platform called SkyQi to measure night-sky quality using smartphone photos. Her analysis of 50 Indian cities reveals a significant increase in night-time radiance between 2015 and 2025, with 47 of the 50 cities showing an increase. The platform uses NASA satellite data and image processing techniques to estimate the brightness of the night sky. Suhani's interest in light pollution began when she noticed the limited visibility of stars in her hometown of Gurugram, and she wanted to find a way to measure the problem. She taught herself image processing and developed SkyQi, which has since grown into a citizen-science initiative with observations from users across dozens of countries. Suhani's findings highlight the importance of protecting dark skies, which are essential for astronomy, nocturnal wildlife, and human exposure to darkness. The platform has the potential to make it easier to observe, understand, and address the changes in night-time radiance in urban areas. Suhani's work demonstrates the power of citizen science and the potential for individuals to make a positive impact on the environment.