A strange supernova that’s 100 times brighter than it should be has long been a mystery, but it may be explained by the explosion slamming into a cloud of gas
Source:
https://www.newscientist.com/article/2231094-mysteriously-bright-supernova-may-have-smashed-up-a-huge-gas-cloud/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home