Science ❯ Astronomy ❯ Observational Techniques
James Webb Space Telescope Microlensing Telescope Technology High-Resolution Imaging Webb Telescope Weak Gravitational Lensing Time-Delay Cosmography Galaxy Clusters
A TDCOSMO analysis of eight lensed quasars measures 71.6 km/s/Mpc with 4.5% precision, pointing to larger samples to reach decisive 1–2% tests.
