Eric Bellm
Alert product group lead for the Rubin Observatory and research associate professor at the University of Washington, focused on real-time astronomical alert systems and time-domain surveys.
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Mar 30, 2026 • 13min
CERN finds a new particle + News alerts for the cosmos
Hassan Jawahery, an experimental particle physicist at UMD, explains the discovery of an extra-heavy baryon made of two charm quarks. Eric Bellm, Rubin Observatory alert lead and astronomer, describes a real-time system that sent 800,000 alerts on its first night. They discuss how the particle was detected, its fleeting nature, and how massive alert streams are filtered and followed up in minutes.
