Astronomers Detect Lightest Double Neutron Star System

Astronomers have identified PSR J1856–0039, the lightest double neutron star system discovered to date, using China's Five-hundred-meter Aperture Spherical Radio Telescope (FAST). This unique system provides a valuable opportunity to test Albert Einstein's Theory of General Relativity and study gravitational wave-generating collisions. The pulsar component's 23.4-millisecond rotation period classifies it as 'mildly recycled,' offering new insights into stellar evolution.