UW astronomers spot record-breaking asteroid in Rubin Observatory data

January 22, 2026 | UW News

A team led by University of Washington astronomers has discovered the fastest-ever spinning asteroid with a diameter over half a kilometer. The asteroid — found while analyzing data from the NSF–DOE Vera C. Rubin Observatory and dubbed 2025 MN45 — is 0.4 miles in diameter and completes a full rotation every 1.88 minutes.

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The Dynamic Sky

January 14, 2026 | Rebecca Bodenheimer | The Magazine of Harvey Mudd College

Astronomer Meredith Rawls is working to explore and protect the universe.

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NSF–DOE Vera C. Rubin Observatory Spots Record-Breaking Asteroid in Pre-Survey Observations

January 7, 2026 | DiRAC News

First peer-reviewed paper using LSST Camera data identifies an asteroid, nearly the size of eight football fields, rotating every two minutes. The study was led by Sarah Greenstreet, NSF NOIRLab assistant astronomer and lead of Rubin Observatory’s Solar System Science Collaboration’s Near-Earth Objects and Interstellar Objects working group. The team presents their results in a paper appearing […]

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