A new report in Science, discusses a significant advancement in measuring the mass of neutrinos, elusive subatomic particles that are fundamental to our understanding of the universe. An international team of scientists, including LNS's Joe Formaggio and his group, and collaborators on the Karlsruhe Tritium Neutrino Experiment (KATRIN) at Germany's Karlsruhe Institute of Technology, has established a new upper limit on the neutrino's mass.