Could JWST solve cosmology’s big mystery? Physicists debate Universe-expansion data
Observations of the current Universe suggest a faster rate of cosmic expansion than predictions based on early-Universe data.Credit: NASA/ESA/Judy Schmidt Cosmology seems to be heading for a showdown on one of its most basic questions: how fast is the Universe expanding? For more than a decade, two types of measurement have been in disagreement. Observations … Read more