Learn about groundbreaking astronomical research exploring atomic hydrogen in ancient galaxies through this detailed lecture presented in Kannada. Delve into the fascinating study of galactic structures and compositions from approximately nine billion years ago as Prof. Nissim Kanekar from the Raman Research Institute shares insights into how scientists detect and analyze atomic hydrogen in distant galaxies. Explore the significance of this research in understanding galaxy evolution, star formation, and the early universe through comprehensive explanations and scientific observations gathered over extensive research periods. Gain valuable knowledge about advanced astronomical techniques and methodologies used to study these ancient cosmic structures during this 84-minute presentation that bridges complex astrophysical concepts with accessible explanations.