No, neutron stars colliding do not produce sound waves that can be heard in the traditional sense. Sound waves are mechanical vibrations that require a medium, such as air or water, to propagate. In space, there is no air or any other medium for sound to travel through, so we cannot directly perceive sound waves generated by celestial events.
However, when neutron stars collide, they release an enormous amount of energy in the form of gravitational waves. Gravitational waves are ripples in the fabric of spacetime itself, predicted by Albert Einstein's theory of general relativity. These waves carry energy and propagate at the speed of light, but they are not sound waves. They cannot be detected by our ears or conventional microphones.
Scientists use specialized instruments called gravitational wave detectors, such as the Laser Interferometer Gravitational-Wave Observatory (LIGO) and the Virgo interferometer, to indirectly detect and measure gravitational waves. These detectors are highly sensitive and can pick up minuscule distortions in spacetime caused by cataclysmic events like neutron star mergers. The detected signals are then translated into visual representations or sonifications that can be interpreted by scientists, but they are not actual sound waves.