MIT 150: The Top 50

Number 42: What's the 'big' idea Alan Guth , an MIT physicist, in 1981 came up with the inflation theory about the universe to answer puzzling questions created by the big bang theory.
Suzanne Kreiter/ Globe Staff

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Number 42: What's the 'big' idea

Alan Guth, an MIT physicist, in 1981 came up with the inflation theory about the universe to answer puzzling questions created by the big bang theory.