In this podcast interview, David Schlegel, a senior scientist in Berkeley Lab’s Physics Division, explains how new cosmological data is furthering our understanding of dark energy. Schlegel’s segment of the interview – The hunt for dark energy. And the unknown third mystery of our universe…. – begins at 24:39 in the full episode, Dark matter and dark energy: mapping the dark universe (31:38), which aired on June 4, 2024, presented and produced by Will Tingle for The Naked Scientists Podcast, a production of Cambridge University’s Institute of Continuing Education.