The Accelerating Expanding Universe - Dark Matter, Dark Energy, and Einstein's Cosmological Constant

Explore a comprehensive lecture on the mysteries of cosmic expansion, dark matter, and dark energy delivered by renowned physicist Bharat Ratra at the Raman Research Institute. Delve into compelling astronomical evidence that has convinced cosmologists of the dominant presence of dark energy and dark matter in our universe's current energy composition. Learn about the development of the quantitative "standard" model of cosmology, tracing the universe's evolution from early inflation to today's intricate structural hierarchy. Through this non-technical presentation, part of RRI's Vignyana Kathegalu popular science talk series, gain insights into the fundamental physics principles and historical progression of ideas that form the foundation of modern cosmological understanding. Master complex concepts including Einstein's Cosmological Constant and the mechanisms driving universal acceleration in this 88-minute illuminating discussion.