For exotic armor, Xur has Promethium Spur, Gwisin Vest, Dunemarchers, and class items. The bigger news for many plans came with the announcement that, for the first time, the exotic class items in ...

This uncertainty of just what Prometheus was responsible for is echoed in the uncertainty of who discovered the element promethium, number 61 in the periodic table. We know who named it. That was ...