GRB 211211A Illustration (IMAGE) NASA/Goddard Space Flight Center Caption Two neutron stars begin to merge in this illustration, blasting a jet of high-speed particles and producing a cloud of debris. Scientists think these kinds of events are factories for a significant portion of the universe’s heavy elements, including gold. Credit A. Simonnet (Sonoma State Univ.) and NASA’s Goddard Space Flight Center Usage Restrictions No restrictions. License Public Domain Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.