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412 Hubble caught a star exploding — and it’s helping map the cosmos

ScienceDaily
ScienceDaily · 07/25/2025 00:13 EDT

In the sprawling Hydra constellation, 137 million light-years away, lies NGC 3285B—a dazzling spiral galaxy recently spotlighted by NASA’s Hubble Space Telescope. This cosmic beauty orbits the edges of the massive Hydra I galaxy cluster, home to some of the universe’s largest elliptical galaxies. What drew astronomers’ eyes was a brilliant Type Ia supernova, a cataclysmic stellar explosion bright enough to briefly rival billions of Suns.

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