In an epic cosmology clash, rival scientists begin to find common ground
Consensus on the universe’s expansion rate might be near, thanks to the James Webb telescope
![A spiral galaxy shown in a composite image from the James Webb Space Telescope and Hubble Space Telescope](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2024/08/082924_ec_hubble-tension_feat.jpg?fit=1030%2C580&ssl=1)
The James Webb Space Telescope could help scientists better measure how fast the universe is expanding. Galaxy NGC 5584, shown in a composite JWST and Hubble Space Telescope image, contains stars called Cepheids that are key to measuring the expansion.
NASA, ESA, CSA, Adam G. Riess/JHU and STScI, Alyssa Pagan/STScI