Wolf-Rayet stars (IMAGE) NASA/Goddard Space Flight Center Caption Wolf-Rayet stars are known to be efficient dust producers, and the Mid-Infrared Instrument on NASA’s James Webb Space Telescope shows this to great effect. Cooler cosmic dust glows at the longer mid-infrared wavelengths, displaying the structure of WR 124’s nebula. Credit Credits: NASA, ESA, CSA, STScI, Webb ERO Production Team. 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.