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jayant narlikar

Jayant Vishnu Narlikar (born July 19, 1938) is an Indian astrophysicist and cosmologist. He is best known for his work in cosmology, particularly his development of the quasi-steady-state model of the universe with Sir Fred Hoyle and Geoffrey Burbidge, an alternative to the Big Bang theory. Here are some key highlights of his career and contributions: * **Education and Career:** Narlikar received his B.Sc. from Banaras Hindu University, followed by a Ph.D. in mathematics from Cambridge University under the guidance of Fred Hoyle. He later became a Fellow of King's College, Cambridge. * **Quasi-Steady-State Cosmology (QSSC):** Along with Hoyle and Burbidge, Narlikar proposed the QSSC model. This model suggests that the universe has no beginning or end, and matter is continuously created in localized regions called "mini-creation events." While this model has not gained widespread acceptance like the Big Bang theory, it has offered alternative explanations for certain cosmological observations. * **Work on Gravitation:** Narlikar has also made significant contributions to the theory of gravitation, particularly in the context of Mach's principle and conformally invariant gravity. * **Awards and Recognition:** Narlikar has received numerous awards for his scientific contributions, including the Padma Vibhushan (India's second-highest civilian award), the Bhatnagar Prize, and the Maharashtra Bhushan Award. * **Science Popularization:** Narlikar is a prolific writer and science communicator. He has written numerous books and articles in English, Hindi, and Marathi to popularize science among the general public. He has also been involved in science fiction writing and film-making, aiming to make scientific concepts accessible to a broader audience. * **Positions Held:** He has held prominent positions in various scientific institutions, including the directorship of the Inter-University Centre for Astronomy and Astrophysics (IUCAA) in Pune, India. In summary, Jayant Narlikar is a distinguished scientist who has made important contributions to cosmology, gravitation, and science communication, and known particularly for his work on the quasi-steady-state model of the universe.

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