Canadian - American astrophysicist, astronomer, and theoretical cosmologist. Peebles was awarded half of the Nobel Prize in Physics in 2019 shared with Michel Mayor and Didier Queloz for their discovery of an exoplanet orbiting a sun - like star
American astronomer who pioneered work on galaxy rotation rates. She is famous for uncovering the discrepancy between the predicted angular motion of galaxies and the observed motion, by studying galactic rotation curves. She is now 84 and lives in U.S.A