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Scientists found a fast-spinning, 1,640-foot-wide asteroid, 2025 MN45, using the Rubin Observatory’s advanced camera during a 2025 survey.
Scientists have discovered asteroid 2025 MN45, over 1,640 feet wide and spinning faster than any similar-sized asteroid ever seen, completing a rotation in under five minutes.
Found using the Vera C. Rubin Observatory’s powerful camera during a seven-day survey in April and May 2025, the discovery revealed nearly 2,000 new asteroids, including 16 super-fast and three ultra-fast rotators.
Most are near-Earth objects, but none pose a threat in the next century.
The observatory’s advanced imaging detected fast-spinning asteroids in the main belt between Mars and Jupiter—regions where such objects were previously hard to spot—marking a major leap in observing capabilities.
The Rubin Observatory is preparing to launch its decade-long Legacy Survey of Space and Time.
Los científicos encontraron un asteroide giratorio rápido, de 1,640 pies de ancho, 2025 MN45, utilizando la cámara avanzada del Observatorio Rubin durante un estudio de 2025.