The James Webb Space Telescope (JWST) has been used to observe the afterglow of the gamma-ray burst GRB 221009a, which occurred in 2019. This is the first time that a gamma-ray burst has been observed with a space telescope, and the results provide new insight into the physics of gamma-ray bursts. The observations show that the afterglow is much brighter than expected, and the spectrum of the afterglow is consistent with theoretical models. This is an important step forward in understanding the physics of gamma-ray bursts and will help researchers better understand the mechanisms that produce these powerful events.

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source: Phys.org