What we didn't know about the moonwalk
Why did Apollo 11's astronauts wait as long as they did before starting their moonwalk? Why did Neil Armstrong go out first, and why do almost all the pictures show Buzz Aldrin? NBC News' Jay Barbree explains it all, 40 years after the historic moment.

http://www.msnbc.msn.com/id/31965108/ns/technology_and_science-space/from/ET