NASA Administrator Bill Nelson, Deputy Administrator Pam Melroy,

NASA Administrator Bill Nelson, front, talks to the workforce at NASA’s Ames Research Center in California’s Silicon Valley during the “Moon to Mars” town hall in the N201 Syvertson Auditorium. Behind, left to right, are Deputy Administrator Pam Melroy, Associate Administrator Bob Cabana, Ames Center Director Eugene Tu, Director of Space Architectures Kurt “Spuds” Vogel, Deputy Associate Administrator for Exploration in the Science Mission Directorate Joel Kearns.