Cosmologists Niayesh Afshordi & Alice Chen discuss recent conflicting results about whether dark energy is evolving or a constant, from the DESI and ACT collaborations, with Zeeya Merali. Image credit: Claire Lamman/DESI collaboration; custom colormap package by cmastro

Editor-in-chief of the biology journal eLife Timothy Behrens tells Miriam Frankel about their experiments with post-publication peer review