NuSTAR (IMAGE) Durham University Caption An illustration of the NuSTAR satellite observatory in orbit. The unique 10-meter-long mast allows NuSTAR to focus high-energy X-rays. Credit NASA/JPL-Caltech Usage Restrictions None License Licensed content 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.