Astronomers capture the most detailed image yet of the medieval supernova remnant Pa 30
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Gemini North in Hawaii produced the sharpest photo to date of the Pa 30 nebula, left by a supernova likely recorded from Earth in the Middle Ages. It reveals about ten times more structures than before; long filaments are broken into pearl-like gas knots of uniform size, each roughly four light-days wide—large enough to hold our solar system’s planetary region about ten times. A study in The Astrophysical Journal, with coauthor Ilaria Caiazzo, will try to model how the knots formed.
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