The blast in question was a supernova – an astronomical event, which occurs during the last stages in the life of a massive star. The peak of luminosity of a supernova can be compared with that of an entire galaxy.
NASA captured a stunning stellar explosion, which was five billion times brighter than the Sun. It occurred in a faraway spiral galaxy NGC 2525, located 70 million light years away from Earth. The supernova SN 2018gv was first discovered by an amateur astronomer, Koichi Itagaki from Japan in 2018. After Itagaki informed NASA, the space agency started observing it using the Hubble telescope, located in space.
The video released by NASA shows a year of the telescope’s observations and provides us with a rare opportunity to witness a dramatic process.
According to the space agency observing supernovae allows researchers to measure the expansion rate of the universe, which is a key value “in understanding the physical underpinnings of the cosmos”.
Sourse: sputniknews.com
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