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About

Yin-Chang Chang is a leading figure in observational astronomy, specializing in the detection of trans-Neptunian objects (TNOs) through high-speed, wide-field imaging. As a key contributor to the Transneptunian Automated Occultation Survey (TAOS II), Chang has driven the development of cutting-edge camera systems that enable the simultaneous monitoring of approximately 10,000 stars at 20 Hz. Their work on the prototype and mosaic CMOS cameras—detailed in papers with over 20 combined citations—has been instrumental in achieving the survey’s goal of detecting stellar occultations by TNOs, offering a statistically robust method to probe the outer solar system. Chang’s contributions to high-speed, low-noise camera performance have set new benchmarks for automated survey technology, directly enabling the TAOS II project to gather unprecedented data on the Kuiper Belt’s population. Their achievements reflect a deep commitment to advancing instrumentation for planetary science, making them a pivotal figure in the quest to understand the distant reaches of our solar system.