CHICAGO, Illinois, Sept. 13 (TNSjou) -- The University of Chicago issued the following Q&A on Sept. 12, 2025, by Maureen Searcy with Josh Frieman, professor emeritus of astronomy and astrophysics, and Anowar Shajib, a NASA Hubble Fellowship Program Einstein fellow: * * * Is dark energy evolving? UChicago astrophysicists consider the possibilities In Q&A, experts unpack new evidence that hints at the true nature of dark energy * Dark energy--the term used to describe whatever is causing the  more PR