A moustache can tell you a lot about a man.
When properly administered, it can say, “this man has commanded spacecraft”, “this man escorted Soviet bombers out of Canadian airspace”, or “this man lived in a research vessel at the bottom of the ocean.”
These can be tall orders to live up to – having a moustache is a big responsibility.
This is how Chris Hadfield introduces himself on his website. Hadfield has flown two Space Shuttle missions and served as commander of the International Space Station. He is the first Canadian to do a space walk.
After his years as an astronaut he has written the New York Times bestseller An Astronuats Guide to Life on Earth and given a successful TED Talk (with over 6 million views.)
In this video he summarizes the first 20 years of the 2000s and recognizes the huge progess humanity has made. Not only in space, but here on Earth.