Jim Peebles
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Jim Peebles is a Canadian-American astronomer who won the Nobel Prize in Physics for his theoretical work in cosmology, the study of the universe's origin and structure. His research has been fundamental to our modern understanding of how the universe began and evolved, making him one of the most important figures in twentieth-century physics.
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Phillip James Edwin Peebles CC OM FRS (born April 25, 1935) is a Canadian-American astrophysicist, astronomer, and theoretical cosmologist who was Albert Einstein Professor in Science, emeritus, at Princeton University. He is widely regarded as one of the world's leading theoretical cosmologists in the period since 1970, with major theoretical contributions to primordial nucleosynthesis, dark matter, the cosmic microwave background, and structure formation.
Peebles was awarded half of the Nobel Prize in Physics in 2019 for his theoretical discoveries in physical cosmology. He shared the prize with Michel Mayor and Didier Queloz for their discovery of an exoplanet orbiting a sun-like star. While much of his work relates to the development of the universe from its first few seconds, he is more skeptical about what we can know about the very beginning, and stated, "It's very unfortunate that one thinks of the beginning whereas in fact, we have no good theory of such a thing as the beginning."
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1935 births20th-century American astronomers20th-century American physicists20th-century Canadian astronomers21st-century American physicists21st-century Canadian astronomersAmerican agnosticsAmerican astrophysicistsAmerican fellows of the Royal SocietyAmerican Nobel laureatesCanadian agnosticsCanadian astrophysicists