First in four centuries
From a 2010 story on Wired.com: “At the University of Toronto’s observatory in the foothills of the Andes mountains, 30-year-old astronomer Ian Shelton was looking at photographic plates in the wee hours of Feb. 24, while listening to Pink Floyd‘s The Wall. The plates covered an area near the Large Magellanic Cloud, when he spotted an exceptionally bright spot. ‘I didn’t call it a supernova in my head at that point,’ he recently recalled. “I just thought, This thing is bright.’ ” It was the first supernova visible to the naked eye since 1604.