Science ❯ Astronomy ❯ Cosmology

Distance Measurement

Light Years Standard Candles Light-years Light-Years Cepheid Variables Galaxy Structure Photometry Cosmic Dust Effects Redshift Calibration Galactic Structure NGC 1559 Gravitational Waves 146 Light Years Hubble Tension Geometric Distances

Most Precise Local Hubble Measurement Sets H0 at 73.5 km/s/Mpc

Robust agreement across many distance tracers points away from a single local error.

Record-Setting Day-Long GRB 250702B Confirmed at z = 1.036 as Origin Remains Unsettled

Ultra-Detailed Thousand-Color Image Reveals Sculptor Galaxy’s Internal Structure