 Coral reefs are in decline globally due to human activity, making it essential to monitor their health and progress. Field surveys provide detailed information about individual reefs, but they are expensive and difficult to conduct frequently enough to track changes over time. Satellite imagery offers a more cost-effective way to monitor reefs at larger scales, but it has limitations in terms of accuracy and detail. However, recent advancements in satellite imagery have improved its capabilities, allowing researchers to better understand the condition of coral reefs and how they respond to environmental stressors. This article was authored by John D. Headley, Chris M. Ralph-Sema, Ileana Chollet, and others.