Hoyle Lecture Theatre, IoA (tea at 3:30 pm) 2022-02-10 16:00: A chemical survey of planets in our galaxy (Giovanna Tinetti (UCL)) 2023-03-09 16:00: The Grand Challenge Questions of Solar Wind Physics (Nicholeen Viall (NASA Goddard Space Flight Center)) 2024-03-07 16:00: The Dawn of Galaxy-scale Gravitational Wave Astronomy (Stephen Taylor, Vanderbilt University) 2025-03-13 16:00: Reconstructing the History of the Milky Way Galaxy Using Stars (Melissa Ness, Research School of Astronomy and Astrophysics (RSAA), Australian National University, Canberra, Australia) 2026-03-12 16:00: Black holes and revelations: unseen companions in stellar binaries (Kareem El-Badry, Assistant Professor of Astronomy at the California Institute of Technology)