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A star torn apart by a black hole lit up the Universe twice

Astronomers using AI have captured a once-in-a-lifetime cosmic event: a massive star’s violent death triggered by its black hole companion. The explosion, known as SN 2023zkd, not only produced a brilliant supernova but also shocked scientists by glowing twice, after years of strange pre-death brightening. Observed by telescopes worldwide, the event provided the strongest evidence yet that black holes can ignite stellar explosions.

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