An explosion of high-energy radiation may have been spotted coming from a galaxy in the distant universe. If confirmed, it would be the oldest known gamma-ray burst, occurring about 400 million years after the big bang.
Linhua Jiang at Peking University in Beijing, China, and his colleagues were using the Keck Observatory in Hawaii to study the faintest and oldest known galaxy in the universe, GN-z11, when they saw the galaxy appear to grow hundreds of times brighter for just under 3 minutes.
The researchers think this could have been a gamma-ray burst, a type of extremely luminous event that has been seen in other galaxies and is thought to occur when certain giant stars explode in a supernova… More about this in link below…