One of the world's best known aerospace engineers, Donna Shirley is Manager of the Mars Exploration Program at the California Institute of Technology's Jet Propulsion Laboratory. She is the recipient of numerous honors, including NASA's Outstanding Leadership Medal and an induction into the Women in Technology International Hall of Fame. The Mars Exploration Program is currently preparing to launch two Mars Surveyor '98 missions, the next in a series of forthcoming Mars explorations. A native of Wynnewood, Oklahoma, Shirley lives in La Canada-Flintridge, California.
Danelle Morton is a Los Angeles-based staff correspondent for People magazine.