Physicists Challenged Relativity After Photon Detection
A study suggests high-energy gamma-ray bursts require modified space-time models to explain observed survival rates.
Updated on Sept. 26, 2026 in Physics
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On October 9, 2022, researchers detected a 300 TeV photon from a gamma-ray burst located 2 billion light-years away. A study published on September 8 suggests this event may challenge standard physics because the photon survival probability is calculated at 10⁻⁹⁶.
Why it matters
The detection forces a reevaluation of how extreme-energy photons interact with the cosmic microwave background during long-distance travel. If confirmed, the research suggests the universe may become transparent to energy levels once thought to be prohibited by standard models.
The researchers calculated a quantum gravity scale of 1.59 × 10¹² GeV based on the 4,536-second arrival delay of the photon. This compares to the simplest relativity model break scale of 1.22 × 10²¹ GeV.
The players
Giorgio Galanti
Physicist who co-authored the study exploring violations of special relativity.
Marco Roncadelli
Researcher specializing in theoretical physics and high-energy cosmic phenomena.
Baksan Observatory
Facility in the Russian Caucasus equipped with a detector array for cosmic radiation research.
NASA
U.S. agency whose Swift satellite and Fermi Gamma-ray Burst Monitor provided detection data.
The details
The proposed model assumes that extremely energetic photons travel slower than those at lower energies, which theoretically reduces their interaction with background radiation. By altering the behavior of space-time, the model enables photons to traverse the universe without being absorbed by background photons. These results rely on data recorded by the Baksan Observatory Carpet array in the Russian Caucasus, which measures cosmic radiation using arrays of detectors.
Timeline
October 9, 2022: The gamma-ray burst GRB 221009A occurred.
September 8, 2026: The research paper was published in Physical Review Letters.
The Tech Race
This research sits within the ongoing effort to reconcile quantum gravity with special relativity. It marks a significant departure from standard models by proposing energy-dependent speed of light variations to explain cosmic observation data.
This development currently resides in the domain of theoretical physics and does not impact commercial technology or consumer hardware. Future validation depends entirely on detecting more high-energy gamma-ray bursts to confirm the observed anomalies.
The takeaway
The research highlights that 300 TeV photons from distant explosions defy existing survival models, suggesting that fundamental space-time physics may be more complex than previously assumed. Watch for future high-energy gamma-ray burst detection reports that could confirm the proposed quantum gravity scale.
Further reading
Explore the Physics section for ongoing research into space-time fundamental properties.
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