Science, What Defines the Truth About it?

How does science change? Who decides the dominant theories in science? What determines the nature and the truth about science? Is it just internal evidences or do external structures also play a role in it? These questions have been a matter of discourse in the realm of science for many years now. To discuss this issue, Newclick interviewed Dr. Satyajith Rath of National Institute of Immunology. Excerpts from the interview. 

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