Space advocates
Category: Space advocates
Ariel Waldman
Science communicator
Elon Musk
South African-American businessman and entrepreneur
Elaine Walker
American composer
Marshall Savage
Writer and advocate of space travel
Keith Cowing
American astrobiologist
David Criswell
American astronomer
Guenter Wendt
American aerospace engineer
Wernher von Braun
German and later American aerospace engineer and space architect