Phillip James Edwin Peebles is a Canadian-American astrophysicist, astronomer, and theoretical cosmologist who gained the Albert Einstein Professorship 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. The Nobel Prize in Physics 2019, announced October 8, 2019. James Peebles (1/2), “for theoretical discoveries in physical cosmology”. Michel Mayor (1/4), “for the discovery of an exoplanet orbiting a solar-type star”. Didier Queloz (1/4), “for the discovery of an exoplanet orbiting a solar-type star”. James Peebles: born 1935, Winnipeg, Canada. Michel Mayor: born 1942, Lausanne, Switzerland. Didier Queloz: born 1966, Geneva, Switzerland. Wiki link Wiki link Wiki link Data: the Nobel Foundation (CC0).