Boffins baffled by record-smashing supernova that shouldn’t exist

Supernovae are nothing new in the universe, but scientists have spotted the largest yet seen, some 200 times as bright as anything recorded previously. The explosion – dubbed ASASSN-15lh after the All-Sky Automated Survey for Supernovae telescopes in Chile that first found the big bang in June last year – was 570 billion times brighter than our sun’s output and around 20 times the entire output of the 100 billion stars comprising our Milky Way galaxy. “ASASSN-15lh is the most powerful supernova discovered in human history,” said Subo Dong, an astronomer at the Kavli Institute for Astronomy and Astrophysics (KIAA) at Peking University. “The explosion’s mechanism and power source remain shrouded in mystery because all known theories meet serious challenges in explaining the immense amount of energy ASASSN-15lh has radiated.”…

Link to Full Article: Boffins baffled by record-smashing supernova that shouldn’t exist

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