Antarctic Ice Enables Breakthrough Detector for Ultra-High-Energy Particles
NASA's PUEO long-duration balloon mission over Antarctica used the ice as a giant detector to search for ultra-high-energy neutrinos and cosmic-ray air showers, achieving higher sensitivity via an interferometric phased-array trigger, expanded antenna channels within a constrained payload, and a new low-frequency instrument; the 23-day flight has ended and data analysis continues, with potential future lunar detector concepts.
