Neutron Stars Collide and Ring Like a Cosmic Bell, Revealing Hidden Secrets

When neutron stars collide, they create a powerful gravitational-wave signal, with the post-merger remnant ringing like a cosmic tuning fork. Scientists have identified this phase, the “long ringdown,” as a key to understanding the extreme matter inside neutron stars. Neutron Stars and Their Mysterious Interiors Neutron stars are some of the most extreme objects in [...]