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Scientists have spotted thousands of dying stars in the process of exploding out of existence. A team operating the 8.2-meter Subaru Telescope in Hawaii say they've identified roughly 1,800 new supernovae sitting as far as eight billion light years away. The trove of new data, including several supernovae of a type known to be useful in calculating star distance, could help to unlock new clues on the expansion of the universe, researchers say. A team including researchers from the Kavli Institute for the Physics and Mathematics of the universe (Kavli IPMU), Tohoku University, Konan University, the National Astronomical Observatory of Japan, School of Science, the University of Tokyo, and Kyoto University published the findings this week in the Publications of the Astronomical Society of Japan.