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Rubin Observatory Goes Live With Real-Time Sky Alerts, Sending 800,000 in First Night

A University of Washington–built pipeline delivers minute‑scale notices to community brokers ahead of the LSST start later this year.

New Spectrograph Reveals Mars-Mass Iron Bar in the Ring Nebula

Hubble and Infrared Observations Show 3I/ATLAS Is an Active Interstellar Comet

Rubin Observatory Unveils First Deep-Sky Survey Images, Activates Rapid Alert System