Auteur: Thomas E. Cravens

Larry W. Esposito is an American planetary astronomer and a professor at the Laboratory for Atmospheric and Space Physics, University of Colorado Boulder. A 1973 graduate at the Massachusetts Institute of Technology, Esposito received his Ph.D in astronomy at the University of Massachusetts Amherst. Ellen Renee Stofan is the former Chief Scientist of NASA and served as principal advisor to NASA Administrator Charles Bolden on the agency”s science programs, planning and investments. She resigned from NASA in December 2016.