Kenneth Greisen
American physicist, astrophysicist and astronomer · United States · On the map · Scientists · Lived 1918 to 2007 · aged 89
Kenneth Ingvard Greisen was an American physicist who worked on nuclear physics and the astrophysics of cosmic rays and gamma radiation. "He will be most remembered for his realization that the cosmic microwave background limits the high-energy end of the spectrum of cosmic ray protons."
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A typical day, 30 days to 13 October 2026
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About this person
Country
United States
Category
Scientists
Type
Scientist
Status
Deceased
Dates
Lived 1918 to 2007 · aged 89
