Apollo 11 Code

You probably need to be an uber nerd to think this is cool, but here it is: "Original Apollo 11 guidance computer (AGC) source code, in assembly, for Command Module (Comanche054) and Lunar Module (Luminary099)", uploaded by Chris L Garry, an intern, to github.

https://github.com/chrislgarry/Apollo-11/tree/6e8c67f53145375d48d8a1af8f85384d1b10ec51

Smithsonian Magazine article discussion the details is here.

And, to coders who are trying to fix it. This is blasphemy, stop it! That code worked fine :) It was a fairly successful operation that we haven't repeated in the last 50 years. 

Here is a nice page that lets you 'replay' the whole thing, both audio and video. This one is a nerd fest too:

http://www.firstmenonthemoon.com/