Explore the cutting-edge of EUV astronomy and its vital role in understanding the hot universe. This definitive guide chronicles the evolution of Extreme Ultraviolet astronomy, from pioneering rocket experiments to advanced satellite missions. Discover how EUV observations unlock crucial insights into stellar evolution, interstellar gas, and the formation of stars and planetary systems. Essential for graduate students and researchers in astrophysics and space science in India, this book provides a comprehensive overview for academic pursuits and advanced study.