AGAdam G. RiessOct 17, 2025New paperautoPaperThe Perfect Host: JWST Cepheid Observations in a Background-free Type Ia Supernova Host Confirm No Bias in Hubble-constant MeasurementsThe Astrophysical Journal Letters · 2025 · Adam G. Riess, Siyang Li, Gagandeep S. Anand et al.2