ISLAMABAD-Andrea Ghez (Caltech MS ’89, PhD ’92), the Lauren B. Leichtman and Arthur E. Levine Professor of Astrophysics at UCLA, has won the 2020 Nobel Prize in Physics for pioneering research that helped reveal a supermassive black hole lurking at the center of the Milky Way galaxy. She shares half the Nobel Prize with ReinhardGenzel of UC Berkeley and the Max Planck Institute for Extraterrestrial Physics. Together, Ghez and Genzel are being honored “for the discovery of a supermassive compact object at the centre of our galaxy.” The other half of the Nobel Prize goes to Roger Penrose of the University of Oxford, “for the discovery that black hole formation is a robust prediction of the general theory of relativity.” “It was a joy to hear the news this morning.