Scientists finally know exactly when a star becomes a black hole
Scientists have identified the critical threshold where a neutron star can no longer resist its own gravity and collapses into a black hole.
The boundary lies between 2.2 and 2.3 solar masses. Below this limit, a neutron star survives. Above it, gravity wins—and a black hole forms.
Credits:
Video Courtesy: NASA Scientific Visualization Studio (SVS)/ Visualizations by Walt Feimer and Luciano Rezzolla