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Ancient Supernova Reveals Secrets of Massive Star's Demise

3/27/2025

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Summary

Story summary

Astronomers have embarked on a fascinating journey of "supernova archaeology," utilizing data from NASA’s Chandra X-ray Observatory to delve into the GRO J1655-40 system. Their analysis of ancient X-ray emissions unveiled the remnants of a colossal star, 25 times the mass of our Sun, bursting with heavy elements—a stellar explosion that occurred over a million years ago.

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Story summary

Astronomers have embarked on a fascinating journey of "supernova archaeology," utilizing data from NASA’s Chandra X-ray Observatory to delve into the GRO J1655-40 system. Their analysis of ancient X-ray emissions unveiled the remnants of a colossal star, 25 times the mass of our Sun, bursting with heavy elements—a stellar explosion that occurred over a million years ago.