2019
Professor Wendy Freedman leads study for new measurement of disputed constant
August 20, 2019
University of Chicago professor Wendy Freedman and colleagues have a new measurement for the rate of expansion in the modern universe, suggesting the space between galaxies is stretching faster than scientists would expect. The paper, “An Independent Determination of the Hubble Constant Based on the Tip of the Red Giant Branch,” Freedman et al, was published on July 12, 2019, in The Astrophysical Journal.