Agencies in the United States and France have signed statements expressing interest to work together on the development and production of technical components for PIP-II, a major particle accelerator project with substantial international contributions. In addition, the French agencies also plan to collaborate on DUNE, an international flagship science project that will unlock the mysteries of neutrinos.

The Deep Underground Neutrino Experiment is advancing technology commonly used in dark matter experiments—and scaling it up to record-breaking sizes.

The ProtoDUNE detector is being assembled at the European laboratory CERN. Photo: Maximilien Brice, CERN

The ProtoDUNE detectors for the Deep Underground Neutrino Experiment are behemoths in their own right.