Gold is a metal, but, surprisingly, we know little about its origins. How is gold made? How did it get on earth? Why is gold more rare than other metals on Earth? Being the stuff of legends, these seem like questions we should have answered long ago. It turns out Burlington-local Brian Metzger was recently able to bring some clarity to these long-standing questions. Metzger studied math and physics at the University of Iowa and went on to receive his Ph.D. from the University of California at Berkeley.