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Neutrino Laser is Physically and Fundamentally Impossible, Physicists Say

2 September 2026 at 22:43

B.J.P. Jones & J.A. Formaggio devise an idea for a laser that shoots a beam of neutrinos. Image credit: Gemini AI.

In a pair of papers published in the journal Physical Review Letters, a team of MIT physicists has shown that the neutrino laser -- a concept proposed just a year ago -- cannot actually be built, no matter how advanced the technology becomes.

The post Neutrino Laser is Physically and Fundamentally Impossible, Physicists Say appeared first on Sci.News: Breaking Science News.

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

Sci.News

By: News Staff

17 June 2026 at 20:48

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.

JCMT0402-0424, a dusty starburst galaxy around 11 billion light-years away, is the strongest candidate yet for the source of the high-energy neutrino event IC 210922A, according to a team of astronomer led by Yuji Urata of MITOS Science Co.

The post Astronomers Trace Elusive High-Energy Neutrino to Star-Forming Galaxy in Early Universe appeared first on Sci.News: Breaking Science News.