The Universe Sparkles in Gamma Rays in this New NASA Animation

We’ve come a long way since gamma rays were discovered. The late 1800s and early 1900s were a time of great scientific advancements. Scientists were just getting a handle on the different types of radiation. Radium featured prominently in the experiments, including one by French scientist Paul Ulrich Villard in 1900. Radium decays readily, and …