Peebles and Ostriker

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© AIP, Physics Today Collection and Tenn Collection.

James Peebles (left) and Jeremiah Ostriker (right) of Princeton University performed pioneering numerical computer simulations that showed how the structure of galaxies we observe in the cosmos requires copious amounts of dark matter. Both Ostriker and Peebles have had long, distinguished careers advancing the study of dark matter on the theoretical side and making numerous other contributions to astrophysics and cosmology. (Unit: 10)