Staggs is PI of the Atacama Cosmology Telescope (Advanced ACTPol) and co-Director of the Simons Observatory, leading development and production of very large, sensitive cryogenic transition-edge-sensor (TES) focal-plane detector arrays used to map cosmic microwave background temperature and polarization anisotropies at ever finer angular resolution. This is included as an astronomy pivot on the strength of its quantum-limited cryogenic detector instrumentation, which is the enabling technology for the high spectral/spatial resolution CMB science.