Definition of Martin Ryle from the Oxford Advanced Learner's Dictionary

 

Martin Ryle

 
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(1918-84) an English astronomer (= scientist who studies the stars, planets, etc.). His work helped to establish the 'big bang' theory, which argues that all the matter in the universe exploded from a tiny point many millions of years ago. (This was opposed to the 'steady state' theory of Fred Hoyle and others.) Ryle was made a knight in 1966 and given the Nobel Prize in 1974.