“Let's not spend resources that we don't need to be sending astronauts back to the moon. Let's not spend expensive resources on bringing people who have reached Mars back again. Prepare them to become a growing colony.”

American astronaut and engineer of the Apollo era, Buzz Aldrin is best known as the second person to walk on the Moon during the Apollo 11 mission in 1969. His career spans pioneering spaceflight, engineering, and advocacy for space exploration, as well as later work as an author and public speaker on science and human achievement.