The longer-lasting gamma-ray bursts have been observed to be dispersed uniformly across the sky.
Since objects cannot change faster than the time it takes electromagnetic radiation to travel through them, the burst of gamma rays' brief duration suggests that whatever its origin, it must be contained within a very narrow zone. Gamma-ray bursts in the sky demonstrate their uniform distribution.
Gamma-ray bursts (GRBs) are very intense gamma-ray bursts that persist for a few seconds to several minutes on cosmic timescales. They are known to take place close to the farthest regions of the observable Universe, far beyond Earth.
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