Science ❯ Astronomy ❯ Cosmology

Cosmic Microwave Background

CMB Anomalies Atacama Cosmology Telescope Research Findings Big Bang Radiation Sigma-8 Tension Elliptical Galaxies Standard Rulers Big Bang Radiation Expansion of the Universe Baryon Acoustic Oscillations Standard Model Planck Satellite Hubble Constant Topology Foreground Contamination Dark Energy Cosmic Structure Formation Density of Matter Planck Observations CMB Experiments Baryonic Acoustic Oscillations Evidence for Dark Energy Observational Techniques Planck 2018 Data Early Universe Measurements Galactic Halos Observational Astronomy Universe Expansion Kinematic Sunyaev-Zel’dovich Effect Planck Satellite Observations

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.

Global Collaboration Pins Local Hubble Constant at 73.50 ± 0.81 km/s/Mpc With 1% Precision

New Review Finds Cosmic Dipole Mismatch Challenging Standard Cosmology

Gravitational-Lens Time Delays Deliver New Hubble Constant, Deepening the Tension

Atacama Cosmology Telescope Issues Final Data Release, Confirms Planck-Like Hubble Value and Tightens Model Constraints

Ground Telescopes Capture Polarized Microwave Light From Cosmic Dawn