Where were you when Apollo 11 landed on the Moon, asks astronaut Buzz Aldrin? He invites you to share your story using the hashtag #Apollo45. Many of our readers weren't born yet, but in the videos below, Buzz talks with Stephen Colbert, Bill Nye, Neil deGrasse Tyson and others about the impact of the Apollo 11 Moon landing on their lives.

You can watch more of the videos here, at Buzz's #Apollo45 YouTube channel.

"And don't forget to write Congress today and tell them it's time to take the next giant leap for mankind."