Add the remaining two Big Joe images

http://archive.org/stream/thisnewoceanhist00swen#page/207/mode/1up
Add image of Sam the space monkey

http://grin.hq.nasa.gov/ABSTRACTS/GPN-2002-000042.html
Add image of Little Joe 2

http://archive.org/stream/thisnewoceanhist00swen#page/211/mode/1up