NASA Cracks 2000-Year-Old Guest Star Mystery from 185 AD

NASA's X-ray study finally solves the riddle of a "guest star" spotted in 185 AD, dazzling ancient sky-watchers for months. The celestial event, recorded by Chinese astronomers, turns out to be a rare supernova remnant. High-resolution X-ray imaging reveals its explosive origins and lingering cosmic debris. This breakthrough rewrites our grasp of stellar deaths from two millennia ago. Scientists hail it as a game-changer for understanding supernovae evolution. Read more about this...