Abstract: Understanding the origin of the elements is one of the major challenges of modern astrophysics. The oxygen in water molecules; the calcium in our bones; the uranium in our weapons---it's all stardust. But what about the details? The answers lie mostly with the stars. I will share recent observations from the high-resolution spectrograph on board the Hubble Space Telescope that teach us about how some of the heaviest elements have been produced. I will highlight connections between atomic physics, nuclear physics, and astronomy that have enabled these advances.