A groundbreaking MIT study suggests that a primordial black hole explosion may have produced the most energetic neutrino ever detected. Researchers argue that as these ancient black holes shrink through Hawking radiation, they eventually explode, sending out powerful particles.A groundbreaking MIT study suggests that a primordial black hole explosion may have produced the most energetic neutrino ever detected. Researchers argue that as these ancient black holes shrink through Hawking radiation, they eventually explode, sending out powerful particles.