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List of all nobel prize winners 2009, Nobel Laureates and why they were awarded their prizes.

Physics:
Charles K. Kao "for groundbreaking achievements concerning the transmission of light in fibers for optical communication"
Willard S. Boyle and George E. Smith "for the invention of an imaging semiconductor circuit – the CCD sensor"

Chemistry:
Venkatraman Ramakrishnan, Thomas A. Steitz and Ada E. Yonath "for studies of the structure and function of the ribosome"Arrow link

Physiology or Medicine:
Elizabeth H. Blackburn, Carol W. Greider and Jack W. Szostak "for the discovery of how chromosomes are protected by telomeres and the enzyme telomerase"

Literature:
Herta Müller: "who, with the concentration of poetry and the frankness of prose, depicts the landscape of the dispossessed"

Peace:
Barack H. Obama: "for his extraordinary efforts to strengthen international diplomacy and cooperation between peoples".

Prize in Economics:
Elinor Ostrom: "for her analysis of economic governance, especially the commons"
Oliver E. Williamson: "for his analysis of economic governance, especially the boundaries of the firm"