The highest-energy gamma-rays from gamma-ray bursts (GRBs) have important implications
for their radiation mechanism. Here we report the detection of gamma-rays up to 13 …

Long-duration gamma-ray bursts (GRBs) are powerful cosmic explosions, signaling the
death of massive stars. Among them, GRB 221009A is by far the brightest burst ever …

On 9 October 2022, the Large High Altitude Air Shower Observatory (LHAASO) reported the
observation of the very early TeV afterglow of the brightest-of-all-time gamma-ray burst …

Gamma-ray bursts were discovered by the Vela satellites in the late 1960s, but they were
announced for the first time exactly 50 years ago, in 1973. The history of our understanding …

A long gamma–ray burst (GRB) is observed when the collapse of a massive star produces
an ultrarelativistic outflow pointed toward Earth. Gamma-ray spectra of long GRBs are …

GRB 221009A was the brightest gamma-ray burst ever detected on Earth. In its early
afterglow phase, photons with exceptional energies above 10 TeV were observed by …

We conducted a comprehensive investigation of the brightest-of-all-time GRB 221009A,
using new insights from very high-energy (VHE) observations from LHAASO and a complete …

Observations of long-duration gamma-ray bursts (GRBs) with TeV emission during their
afterglow have been on the rise. Recently, GRB 221009A, the most energetic GRB ever …

Recent LHAASO observations of the prompt emission phase of the brightest-of-all-time GRB
221009A imposes a stringent limit on the flux ratio between the TeV and MeV emissions, F …

The TeV observations of GRB 221009A provided us with a unique opportunity to analyse the
contemporaneous phase in which both prompt and afterglow emissions are seen …