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Explore the emerging field of cosmic dawn cosmology in this 16-minute conference talk that examines the earliest epochs of the universe when the first stars and galaxies began to form. Delve into the theoretical frameworks and observational techniques used to study the period between the cosmic dark ages and reionization, when the universe transitioned from a neutral to an ionized state. Learn about the 21-cm hydrogen line as a probe of this era, the challenges in detecting these faint signals, and how upcoming radio telescopes and surveys are revolutionizing our understanding of structure formation in the early universe. Discover the connections between cosmic dawn observations and fundamental cosmological parameters, including dark matter properties and primordial fluctuations. Gain insights into how this rapidly developing field is opening new windows into the universe's first billion years and providing unprecedented tests of our cosmological models.
