Science ❯ Astronomy ❯ Cosmology

Universe Expansion

Hubble Tension Hubble Constant Dark Energy Big Crunch Dark Matter Deceleration Void Fraction Distance Measurements Baryon Acoustic Oscillations Big Bang Theoretical Physics Baryon Acoustic Oscillation Multiple Universes Lambda CDM Model Changing Speeds Fast Radio Bursts Galactic Formation Supernova Contributions Type Ia Supernovae and Distance Measurement Element Distribution Cosmological Models Energy Dark Matter Gravitational Lensing Cosmic Structures Measurement Techniques Energy Dark Deceleration of Expansion Supernovae Dark Energy Research Research Findings

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

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.

New Study Claims the Universe Is Now Decelerating After Supernova Age-Bias Correction

New Peer-Reviewed Model Says Changing Constants Could Explain Dark Matter and Dark Energy

New BAO Analysis Strengthens Local Void Solution to Hubble Tension

Astronomers Capture First Visual Proof of Double-Detonation in Type Ia Supernova Remnant