Since we are on the subject, if anyone is bored the in my opinion definitive history of space flight is a book called "This New Ocean"
750 pages, an exhaustive history from the very beginning (going back hundreds of years) and based on over 175 interviews with the American, Russian, and German scientists involved in the modern era.
An amazing (but can be dry) look at all of the personalities and technology, and how in a most basic sense most of our space progress is just a side product of convincing the military to let us use some of their extra doomsday rockets to attach scientific equipment to.
Fun fact, the US actually disassembled many of the leftover German V2 rockets and rebuilt them and used them in the American Southwest. And yea also the guy who built the V2's raining down on London also built our moon program.
Fascinating stuff!
http://www.amazon.com/This-New-Ocean-Library-Paperbacks/dp/0375754857