Cosmology: The Story of Our Universe
Cosmology is the scientific study of the Universe — its past, present and future. Over the last few centuries our understanding of the composition and history of the Universe has increased dramatically. This has been aided by the development of various earth and space-based instruments to look at the night sky, as well as by theoretical developments, most notably Einstein's proposition of the Theory of General Relativity. We now know that the Universe has been expanding for the past 14 billion years, since the Big Bang. Over time, atoms, stars, galaxies, and larger scale structures formed. However observations imply that today most of the Universe consists of non-visible dark matter and dark energy, driving its expansion and evolution. Many mysteries remain, particularly about the nature of dark matter and dark energy and the future of the Universe, making cosmology an active and evolving field of research.
Speaker
Raghavan Rangarajan
Dean and Professor
School of Arts and Sciences
PhD (University of California)
Research Interests: Cosmology and Particle Physics
Date: Friday, October 30, 2026
Time: 4:30 - 6:00 PM IST
Venue: Room 002, GICT Building, Central Campus
