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Scientists Detect Record-Breaking High-Energy Ghost Particle

FEB 13 2025·Updated AUG 24

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Image credit: Wikimedia Commons

The Facts

Scientists have detected an ultra-high-energy neutrino using the KM3NeT detector located 3,450 meters beneath the Mediterranean Sea. With 220 petaelectronvolts (PeV) of energy, it's the most energetic neutrino ever observed — 100 times more powerful than any previously detected neutrino.
Livescience.Com
Space.com
PHYS
The neutrino was detected when it produced a muon particle, triggering signals in more than one-third of the detector's sensors and creating distinctive flashes of blue light that enabled scientists to measure its trajectory and energy levels.
Reuters
Gizmodo
The particle's extraordinary energy level is equivalent to 30K times the capacity of CERN's Large Hadron Collider, and would require an accelerator so large it encircled Earth to achieve similar energy levels.
Gizmodo
Space.com
Scientists have identified 12 potential blazars — supermassive black holes at the centers of distant galaxies — as possible neutrino sources, though their exact origin remains unknown.
CNN
Reuters
The detection occurred while KM3NeT (the Cubic Kilometer Neutrino Telescope) was only 10% complete, suggesting the possibility of further similar discoveries as construction continues toward full capacity.
ABC
Gizmodo
The neutrino could mark the first-ever detection of a "cosmogenic neutrino" created by cosmic rays interacting with photons from the cosmic microwave background radiation left over from the Big Bang.
ScienceAlert
Space.com

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The Spin

Narrative A

The early detection of such an energetic neutrino with only 10% of the detector operational suggests these particles might be more common than previously thought, potentially revolutionizing our understanding of the universe's most extreme events and particle acceleration mechanisms.

Independent

Gizmodo

Narrative B

The lack of similar detections by other neutrino observatories, such as IceCube, raises questions about whether this was an extremely lucky find or if there might be issues with the detection methodology that must be addressed before drawing definitive conclusions.

CNN

ABC