What Happens the Moment Two Neutron Stars Collide

What actually happens in the final milliseconds when two neutron stars, each holding more mass than our sun compressed into a city-sized sphere, finally collide? In this video, we walk through the entire violent sequence, from the last orbits of a hundred-million-year inspiral to the shock waves, ejecta, and gravitational wave bursts of the merger itself. Discover how these cataclysmic events forge gold, platinum, and uranium in a fraction of a second through rapid neutron-capture nucleosynthesis, powering the brilliant kilonova glow observed across the electromagnetic spectrum. Sources: LIGO Scientific Collaboration and Virgo Collaboration, "GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral," Physical Review Letters, 2017 Metzger, B. D., "Kilonovae," Living Reviews in Relativity, 2020 Baiotti, L. and Rezzolla, L., "Binary neutron star mergers: a review of Einstein's richest laboratory," Reports on Progress in Physics, 2017 Kasen, D. et al., "Origin of the heavy elements in binary neutron-star mergers from a gravitational-wave event," Nature, 2017 Radice, D. et al., "The Dynamics of Binary Neutron Star Mergers and GW170817," Annual Review of Nuclear and Particle Science, 2020 #NeutronStars #GravitationalWaves #Kilonova #Astrophysics #Space #Cosmology #Nucleosynthesis