Jo Dunkley is the Joseph Henry Professor of Physics and Astrophysical Sciences at Princeton University. She received her Ph.D. in astrophysics at the University of Oxford. Her research is in cosmology, where she studies the origins and evolution of the universe, and connects cosmological theory, data, and statistical methods. She is especially interested in the earliest moments of the universe’s history, and in understanding the composition of the cosmos including its invisible dark matter. She has received several awards over her career, including the Tomassoni Chisesi physics prize, the New Horizons in Physics Prize, and the Gruber Prize for Cosmology. She was also appointed Officer of the Order of the British Empire (OBE), for her services to science in 2019, and was elected a Fellow of the Royal Society in 2024. She currently works on the Atacama Cosmology Telescope and Simons Observatory in northern Chile, and previously worked on NASA’s Wilkinson Microwave Anisotropy Probe and ESA’s Planck satellite.