Astronomers have traced an extremely high-energy neutrino—often called a “ghost particle” because it rarely interacts with matter—to a distant galaxy nicknamed the “Shadow Blaster,” located about 11 billion light-years from Earth. The galaxy is hidden behind thick clouds of dust, making it difficult to study with visible light, but it is experiencing an intense burst of star formation and likely harbors a supermassive black hole.
The neutrino was detected by the IceCube Neutrino Observatory in Antarctica, allowing researchers to pinpoint its cosmic origin. This is the first time a heavily dust-obscured starburst galaxy has been linked to a high-energy neutrino, suggesting these hidden galaxies are powerful natural particle accelerators. Scientists estimate similar galaxies could produce up to 20% of the universe’s high-energy neutrino background, offering new clues about the most energetic events in the cosmos.
