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Shadow Blaster points to starburst galaxies as hidden sources of cosmic neutrinos

June 20, 2026

A ghostlike particle from deep space sent astronomers chasing one of the Universe’s hardest mysteries. The trail led…

The origin of high-energy astrophysical neutrinos remains unresolved, and secure electromagnetic counterparts to individual events are rare despite rapid follow-up. Dusty star-forming galaxies at cosmic noon (redshift of z ≈ 1-4) are natural cosmic-ray calorimeters, yet observational links between these galaxies and neutrinos have remained unknown. Urata et al. report a compact-core, dusty star-forming galaxy within an IceCube localization, JCMT0402-0424, a quadruply lensed galaxy at z = 2.988 located inside the 90% containment region of the IceCube event IC 210922A. Image credit: International Gemini Observatory / NOIRLab / NSF / AURA / ALMA / ESO / NAOJ / NRAO / T.A. Rector, University of Alaska Anchorage & NSF’s NOIRLab / D. de Martin & M. Zamani, NSF’s NOIRLab / Yuji Urata. MITOS Science Co., LTD.

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Astronomers Trace Elusive High-Energy Neutrino to Star-Forming Galaxy in Early Universe

June 17, 2026

JCMT0402-0424, a dusty starburst galaxy around 11 billion light-years away, is the strongest candidate yet for the source…