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supernova remnants

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OCtober 9, 1604: Kepler Sees The Galaxy’s Last Supernova

by Editor
October 8, 2025

On the evening of October 9, 1604, a new and dazzling light appeared in the constellation Ophiuchus. To observers across Europe and Asia, it was as if a new star had been born overnight—a radiant point that outshone every other object in the night…

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