What's inside neutron stars? New model could sharpen gravitational-wave 'tide' clues

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Mar 8, 2026 - 21:04

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What's inside neutron stars? New model could sharpen gravitational-wave 'tide' clues

Neutron stars harbor some of the most extreme environments in the universe: their densities soar to several times those of atomic nuclei, and they possess some of the strongest gravitational fields of any known objects, surpassed only by black holes. First observed in the 1960s, much of the internal composition of neutron stars is still unknown. Scientists are beginning to look to gravitational waves emitted by binary neutron‐star inspirals—pairs of mutually orbiting neutron stars—as possible sources of information about their interiors.