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UW astronomers spot record-breaking asteroid in Rubin Observatory data

University of Washington

Jan 22, 2026

An artist's rendering of 2025 MN45 - the fastest-rotating asteroid with a diameter over 500 meters that scientists have ever found. Photo: NSF--DOE Vera C. Rubin Observatory/NOIRLa…

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UW astronomers spot record-breaking asteroid in Rubin Observatory data

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