Classroom Questions Questions for ‘Learning from what Apollo astronauts left on the moon’ This photo, taken in 1969 by Astronaut Neil Armstrong, shows Astronaut Buzz Aldrin walking on the moon during the Apollo 11 mission. Apollo astronauts left a lot on the moon’s surface, from scientific instruments to trash. NASA Share this:FacebookTwitterRedditGoogle ClassroomEmailPrint By Science News for Students October 3, 2019 at 5:30 am Classroom questions are available for free with registration. Learn more Register to access: Client key* E-mail* Log in Already Registered? Enter your e-mail address above.