actinium-225 (IMAGE) DOE/Brookhaven National Laboratory Caption This long-exposure image makes it possible to see the glow of actinium-225, an isotope that shows great promise for treating cancer. (Jessica Rotkiewicz/Brookhaven National Laboratory) Credit (Jessica Rotkiewicz/Brookhaven National Laboratory) Usage Restrictions OK to use with articles about Brookhaven Lab's Secretary of Energy Achievement Awards License Original 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.