tychosupernovaremnant
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Watch a 450-year-old supernova continue to bloom
Back in 1572, a white dwarf's explosion shone brightly on the sky. It was visible to the naked eye, and astronomers like Tycho Brahe were able to monitor the event despite not having the equipment we do today. We might have missed the chance to see what's now known as Tycho's supernova, but thanks to Chandra X-ray observatory's data, we can see its remnant continue to bloom almost 450 years later. A group of astronomers compiled Chandra's observations from the year 2000 to 2015 to create a video showing its ongoing expansion.
