In the culmination of a decade’s worth of effort, the DES collaboration of scientists analyzed an unprecedented sample of more than 1,500 supernovae classified using machine learning. They placed the strongest constraints on the expansion of the universe ever obtained with the DES supernova survey. While consistent with the current standard cosmological model, the results do not rule out a more complex theory that the density of dark energy in the universe could have varied over time.

After twenty years of research, development, testing and production, the United States is now shipping state-of-the-art superconducting accelerator magnets to CERN for the high-luminosity upgrade to the Large Hadron Collider. At the heart of these powerful magnets is a new superconducting material used for the first time in a particle accelerator.