18 Things You Didn't Know About Buzz Aldrin

Buzz Aldrin was the second man to walk on the moon, emerging soon after Neil Armstrong took the first lunar steps. Aldrin instantly became a celebrity, with people becoming intimately familiar with his biography. Interesting facts about Buzz Aldrin range from the origin of his nickname to him not making it into NASA's astronaut program until the third try. He also struggled greatly after leaving NASA in 1971.

Aldrin has done everything from write novels to fly combat missions, and almost everything in between. He's gotten sober, feuded with companies that used his image without permission, punched a moon landing denier, and criticized NASA's current mission priorities. He's also been an advocate for manned space exploration - and for science education.

Here are some interesting and little known Buzz Aldrin facts, one of the most fascinating figures in American history.