When the auroras disappeared for good a week later and the glittering stars returned, one final, glorious movement of the supernova’s symphony was left: A shining nebula appeared at the very spot where the Dead Star had been just days before. The explosion’s dust cloud was excited by the high-energy pulse of the star’s remains and emitted synchronized radiation in the visible spectrum for humanity to see. The nebula grew until it was roughly the size of two full moons in the sky. This rosette-shaped radiant body, later given the name “Rose Nebula,” emitted a strange, harsh blue light into the
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