The Large High Altitude Air Shower Observatory (LHAASO) has officially released the precise energy spectrum for the highest-energy gamma-ray radiation from Gamma-Ray Burst (GRB) 221009A, the brightest GRB observed to date. This finding challenges the standard radiation model of GRB afterglows, revealing that the intensity of cosmic background light in the infrared band is lower than expected. A...

New research findings on the gamma-ray burst (GRB) named GRB 221009A from the Large High Altitude Air Shower Observatory (LHAASO) were published online by the journal Science on June 8, 2023. The study, entitled "A tera-electronvolt afterglow from a narrow jet in an extremely bright GRB 221009A", was completed by the LHAASO international collaboration.

The Large High Altitude Air Shower Observatory (LHAASO) project, one of China's major national scientific and technological infrastructure facilities, has successfully passed national acceptance and formally gone into operation. LHAASO is a facility focusing on cosmic ray observation and research. It was approved by the National Development and Reform Commission (NDRC) on Dec. 31, 2015. Jointly...

Scientists from the Large High Altitude Air Shower Observatory (LHAASO) have presented roughly 1.5 years of observational data, calculating new limits on the lifetime of heavy dark matter particles that have masses between 10^5 and 10^9 giga-electron volts. The study, entitled “Constraints on heavy decaying dark matter from 570 days of LHAASO observations,” was recently published as a highlig...

Researchers from the Institute of High Energy Physics of the Chinese Academy of Sciences examined the validity of the theory of relativity with the highest accuracy in a study entitled “Exploring Lorentz Invariance Violation from Ultrahigh-Energy γRays Observed by LHAASO,” which was published in the latest issue of Physics Review Letter.

The Large High Altitude Air Shower Observatory (LHAASO), one of China's key national science and technology infrastructure facilities, has accurately measured the brightness over 3.5 orders of magnitude of the standard candle in high-energy astronomy, thus calibrating a new standard for UHE gamma-ray sources. The standard candle is the famous Crab Nebula, which evolved from the "guest star" rec...

China's Large High Altitude Air Shower Observatory (LHAASO)—one of the country's key national science and technology infrastructure facilities—has found a dozen ultra-high-energy (UHE) cosmic accelerators within the Milky Way. It has also detected photons with energies exceeding 1 peta-electron-volt (quadrillion electron-volts or PeV), including one at 1.4 PeV. The latter is the highest energ...

China's Large High Altitude Air Shower Observatory (LHAASO), a cosmic ray detection facility located in the high mountains of Sichuan province, recently began scientific observation of very high energy cosmic rays as it launched operation of its first set of detectors. The goal of LHAASO, which will be completed in 2021, is to discover high energy gamma ray sources, and precisely measure the ra...

The No.1 Pool for the Water Cherenkov Detector Array (WCDA) of the LHAASO project began to be injected with purified water on February 28, 2019.

The 2018 annual engineering construction conference of LHAASO was held at the Institute of Frontier and Interdisciplinary Science of Shandong University, January 3 to 4.