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Today in History: First Supernova Studied in Detail Observed from Earth

2/23/2026

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Summary

Story summary

On February 23, 1987, light and neutrinos from SN 1987A, a Type II supernova in the Large Magellanic Cloud, reached Earth. This event marked the closest observed supernova since 1604, allowing astronomers to study it in detail. SN 1987A peaked in brightness in May, outshining the brightest star in its constellation.

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Story summary

On February 23, 1987, light and neutrinos from SN 1987A, a Type II supernova in the Large Magellanic Cloud, reached Earth. This event marked the closest observed supernova since 1604, allowing astronomers to study it in detail. SN 1987A peaked in brightness in May, outshining the brightest star in its constellation.