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Magnetars Magnetic Fields Neutron Star Mergers Collision Quark Cores Massive Neutron Stars Neutron Star Collisions Colliding Stars Plasma Dynamics High Spin Neutron Stars Supernovae Mixed Mergers Neutron Star-Black Hole Mergers Particle Interactions Superfluid Vortices
Upgraded detectors captured a near-duplicate of the first event with a far clearer signal that enabled direct checks of black-hole structure.