News Summary

• The Jiangmen Underground Neutrino Observatory (JUNO) has achieved its first major scientific milestone.
• JUNO began collecting data in August 2025.
• One of its primary scientific goals is to determine the mass ordering of neutrinos.
• The experiment is also designed to measure three of the six neutrino mixing parameters with better than 1% precision and to study neutrines produced by supernovae, Earth's interior, the Sun, the atmosphere, and other sources.
• As the experiment continues to gather data, researchers expect to release a series of new scientific results beginning this summer.