Astrophysicist Andrea Ghez ’87 has been awarded the 2020 Nobel Prize in Physics, announced today by the Royal Swedish Academy of Sciences in Stockholm. She shares half of the prize with Reinhard Genzel, “for the discovery of a supermassive compact object at the center of our galaxy.” The other half of the prize was awarded to Roger Penrose, “for the discovery that black hole formation is a robust prediction of the general theory of relativity.” Ghez received a BS in physics at MIT in 1987, where she started out majoring…