In a rare and extraordinary discovery, researchers have identified a unique configuration of galaxies that form the most exquisitely aligned gravitational lens found to date.
Scientists working on the Short-Baseline Near Detector at Fermi National Accelerator Laboratory have identified the detector’s first neutrino interactions.
Combining the DESI data with other experiments shows signs that the impact of dark energy may be weakening over time—and the standard model of how the universe works may need an update.