Joan Feynman

Joan Feynman (born March 31, 1927) is an American astrophysicist. She has made important contributions to the study of solar wind particles and fields; sun-Earth relations; and magnetospheric physics. In particular, Feynman is known for developing an understanding of the origin of auroras. She is also known for creating a model that predicts the number of high-energy particles likely to hit a spacecraft over its lifetime, and for uncovering a method for predicting sunspot cycles.