Alice Pisani is an Italian cosmologist. She completed her undergraduate studies in Rome, at University Sapienza. She then moved to France, where she obtained her Ph.D. in Astrophysics from Sorbonne Universités (Université Pierre et Marie Curie). At Princeton, she is appointed as a postdoctoral researcher in the Department of Astrophysical Sciences.
Her current research focuses on cosmic voids, the large under-dense regions in the distribution of galaxies in the Universe. Cosmic voids are by definition devoid of matter and — as such — they could be particularly sensitive to the properties of dark energy, a component that constitutes roughly 70% of our universe and that we still do not understand. Dark energy could be responsible for the accelerated expansion of our Universe. Thus, Pisani's research focuses on answering fundamental questions in the field of cosmology: What is our Universe made of? Why is its expansion accelerating? Can cosmic voids help us to better understand the evolution and composition of the Universe?