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Illustration of a merger of a white dwarf with sub-giant star (size not to scale) that would have occurred in past. Image credit: Snehalata Sahu / University of Warwick.

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Hubble Finds Remnant of White Dwarf Merger 130 Light-Years Away

August 7, 2025

White dwarfs are the dense cores left behind when stars exhaust their fuel and collapse. They are Earth-sized…