Berkeley Lab has been selected to serve as DOE’s lead lab and carry out DOE responsibilities in the largest collaborative effort yet to explore the universe’s relic light. The CMB-S4 experiment will survey the microwave sky in unprecedented detail with 500,000 ultrasensitive detectors. https://newscenter.lbl.gov/2020/09/09/lead-lab-selected-for-next-generation-cosmic-microwave-background-experiment/