Joshua Sokol is a freelance science journalist in Boston. His work has appeared in New Scientist, The Atlantic, The Wall Street Journal and elsewhere. He has a bachelor’s degree in astronomy and in English literature from Swarthmore College, and a master’s degree in science writing from the Massachusetts Institute of Technology. In between, he worked as a data analyst for the Hubble Space Telescope’s Advanced Camera for Surveys.
For decades, researchers believed that violent supernovas forged gold and other heavy elements. But many now argue for a different cosmic quarry.