Satellites offer a unique vantage point to observe the Earth, providing essential insights into global environmental change. These observations have led to breakthroughs in our understanding of climate change and have informed better decision-making for environmental management. HKUST is at the forefront of developing a multi-modal satellite program that supports environmental monitoring, disaster warning and response, smart cities, and sustainable development. This talk will discuss the already-launched HKUST-FYBB#1 satellite, the upcoming HKUST carbon satellite mission, and on-going research projects that utilize satellite remote sensing data to generate socioeconomic impacts. The HKUST multi-modal satellite program aims to leverage the latest satellite technology to provide high-quality data and insights that can inform effective environmental policies and actions, and contribute to a more sustainable and resilient future for all.