Rethinking Cosmology - The High-Redshift Universe as a Cosmological Laboratory and Reionization Studies - Day 5 Session 2

Explore cutting-edge cosmological research through this conference session featuring three expert presentations on high-redshift universe studies and their implications for fundamental cosmology. Delve into how recent JWST observations are creating tensions with standard cosmological models as Tirthankar Roy Choudhury examines the high-redshift universe as a testing ground for cosmological theories, bridging current JWST findings with future SKA capabilities. Discover how cosmic reionization serves as a powerful tool for probing dark sector physics through Girish Kulkarni's analysis of the transition from neutral hydrogen islands to fully ionized intergalactic medium. Learn about 21-cm radio astronomy constraints on early universe physics from Saurabh Singh's presentation on how neutral hydrogen signals provide unique insights into high-redshift cosmological parameters. Gain understanding of how these observational frontiers are challenging the standard ΛCDM model and opening new avenues for testing fundamental assumptions about dark matter, dark energy, and the cosmological principle through precision measurements of the early universe's structure and evolution.