References:

The following pages were helpful in finding the information contained in this website.

1. http://photojournal.jpl.nasa.gov/
2. http://kosmoi.com/Technology/Space/Shuttle/Pictures/
3. http://www.netaxs.com/people/ebailey/a4b_launch.jpg
4. http://superstringtheory.com/
5. http://www.damtp.cam.ac.uk/user/gr/public/bb_home.html