But…you’re the astrophysicist, right?” Vanessa said. Joan corrected her: “Astronomer.” “What’s the difference?” Joan shook her head. “There barely is one.” “But there is a difference, clearly.” “An astrophysicist studies the physics of space, whereas my focus is on space itself, the sun in particular. Then again, you can’t study space without studying the physics of space. And time. Or math. Or anthropology and the history of humans’ understanding of the stars. Or mythology and theology, for that matter. It’s all connected.”
