Researchers address a long-standing question about what could exist inside a black hole. The standard “textbook” answer is a singularity, where density is infinite and current physics cannot describe what happens. Several outlets note that this is less an explanation than an indication of where theory breaks down.
Phys.org and Universe Today both summarize a newer theoretical proposal by two researchers in China. In their model, a neutron star could exist entirely within the black hole’s event horizon rather than collapsing to an idealized point. The proposed configuration keeps the neutron star intact and the interior “well behaved,” with a characteristic size on the order of about 12 kilometers across. The sources describe the idea as potentially defying familiar expectations about what must occur after crossing the horizon, though the proposal remains theoretical and tied to the authors’ specific assumptions.
Overall, the coverage focuses on contrasting the conventional singularity picture with an alternative that replaces it with a stable compact object inside the horizon.
