Astronomers identified the dusty star-forming galaxy JCMT0402-0424, nicknamed “Shadow Blaster,” as the strongest candidate yet for the source of the high-energy neutrino event IC 210922A, detected by the IceCube Neutrino Observatory in Antarctica in 2021. The galaxy lies about 11 billion light-years away, at redshift z = 2.988, and appears as a quadruply lensed system inside IceCube’s 90% containment region for the event. IceCube recorded IC 210922A at 18:18 on Sept. 22, 2021, as a particle t...

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