CosmologyMeasurements of the Universe's Expansion Rate Disagree Like ShareThe mismatch, known as the Hubble tension, remains unresolved.DetailsPublishedSeptember 30, 2026views39Cosmology
Cosmology37 viewsFred Hoyle Coined the Term Big Bang in 1949He used it on BBC radio while favoring a rival steady-state theory.
Cosmology48 viewsAlan Guth Proposed Cosmic Inflation in 1980The theory says the universe expanded extremely rapidly in a tiny fraction of the first second.
Cosmology48 viewsVera Rubin's Galaxy Rotation Studies Supported Dark MatterStars in the outer parts of galaxies orbit faster than visible matter can explain.
Cosmology42 viewsThe Expansion of the Universe Is AcceleratingSupernova observations in 1998 revealed it, and won the 2011 Nobel Prize in Physics.