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Explore the groundbreaking science and technology behind capturing the first images of black holes in this comprehensive lecture from the International Conference on Black hole and String theory 2025. Learn about the revolutionary techniques used by the Event Horizon Telescope collaboration to image the supermassive black holes at the centers of M87 and our own Milky Way galaxy, including very long baseline interferometry, data processing methods, and the computational challenges involved in reconstructing images from sparse astronomical data. Discover how these historic achievements have provided unprecedented insights into the nature of black holes, tested Einstein's theory of general relativity in the strongest gravitational fields in the universe, and opened new frontiers in black hole physics and astrophysics. Gain understanding of the international collaboration required for this monumental scientific endeavor, the technical innovations that made these observations possible, and the implications of these discoveries for our understanding of fundamental physics and the cosmos.