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Cosmic Events

Extreme Nuclear Transients Superkilonova Star Formation Dust Clouds GW170817 Material Composition AT2025ulz Supernova Types Asteroid Impacts Neutron Stars Solar System Dynamics Simulation Models Radio Waves Black Hole-Neutron Star Mergers Supernovas Kilonova X-ray Bursts Kilonovae Collision Dynamics Gravitational Wave Events Black Hole Mergers Planetary Fragility Fast Radio Bursts Neutron Star Collisions Galaxy Mergers Supernova Discovery Magnetars Supernovae Tidal Disruption Events Gamma-ray Bursts Black Hole Collisions Collision Theories Planetary Destruction

Eccentric Orbit Confirmed in Neutron Star–Black Hole Merger GW200105

A Birmingham-developed waveform model rules out a circular path with 99.5% confidence.

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

Caltech Team Flags Candidate 'Superkilonova' After August Gravitational-Wave Alert

Caltech Team Reports Candidate 'Superkilonova' From August Gravitational-Wave Alert

Hubble Spots Second Debris Cloud at Fomalhaut, Confirming Repeated Planetesimal Collisions

Astronomers Report Candidate 'Superkilonova' Linked to 2025 Gravitational-Wave Alert

LVK’s 2024 Black-Hole Mergers Now Tied to a Low-Mass, Fast-Spinning Subpopulation

Georgia Meteorite Dated at 4.56 Billion Years, Heads for Official Naming

ANITA Detector Logs Anomalous Radio Pulses From Beneath Antarctic Ice