Neutrino signals are everywhere, and originate from high-energy sources like our sun, supernovae, and the Big Bang. To capture the emission signals, the balloon-borne radio detector is sent to fly over stretches of ice, capturing what are called ice showers. Wissel has spent years codesigning experiments to identify neutrinos, and that’s where systems like ANITA come into play. Wissel and colleagues then wait for radio emissions as neutrinos interact with the Earth’s frozen surface. But that’s only if they obey the known laws of physics—and a handful of particles aren’t doing that in Antarctica.