James Webb Just Found Something Strange — And the Universe Might Be Broken

James Webb Just Found Something Strange, And the Universe Might Be Broken The James Webb Space Telescope is showing us something that cosmologists did not expect. Two careful teams measure the expansion of the universe and get two different answers. This is called the Hubble tension. At the same time, JWST is finding massive early galaxies that seem to have appeared far too soon after the Big Bang. In this video, we explain in simple words: What the Hubble constant is and why it matters Why the cosmic microwave background and the cosmic distance ladder disagree What Cepheid stars and Type Ia supernovae tell us The mystery of early galaxies, little red dots, and the Big Wheel galaxy Whether dark energy, early dark energy, or new physics could explain it Is the standard model of cosmology cracking, or are we just measuring wrong? Tell us what you think in the comments. If you enjoy space and science explained simply, like the video and subscribe for more. #JamesWebb #HubbleTension #Universe #BigBang #Cosmology #DarkEnergy #SpaceDocumentary #Astronomy #JWST