Dr. Ellen Stofan

Former chief scientist of NASA's Jet Propulsion Laboratory

Dr. Ellen Stofan is a planetary scientist and former chief scientist of NASA's Jet Propulsion Laboratory. She has been working in the field of planetary science for over 30 years and has led numerous missions to Mars and other planets. She is also a strong advocate for STEM education and has written several books on science. Dr. Stofan has a degree in geology and has worked in the field of planetary science. She is b...