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
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