The star that formed the Jellyfish nebula may have had a partner star that exploded 100,000 years earlier, according to international researchers, who say that this may be the first known discovery of a binary star system in which both stars have gone supernova.

Source: [Phys.org](https://phys.org/news/2026-07-jellyfish-nebula-scene-stars-supernova.html)

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