Question

Which Apollo 11 astronaut did not set foot on the moon?

Answer 1

I believe the Apollo 11 astronaut that did not set foot on the moon was Michael Collins. :)

Answer 2

People who walked on the moon in the Apollo 11 mission: Neil Armstrong, Buzz Aldrin

Michael Collins did not set foot on the moon in the Apollo 11 mission (or ever.) He is 84 years old and still alive.