National Aeronautics and Space Administration / Post Office / /
Person
Marcy / Gay / Ammann / Segura / Stern / /
Position
citizen science leader / author / Director of the Planetary Society Dr. Louis Friedman / and space artists Jon / space historian and author / planet hunter / Executive Director / CEO and astronomer / director / planetary scientist / planetary scientist and CEO / author and former museum science director / planetary scientist and aerospace executive / /