Wah, dun reply then thread might die...
http://www.airliners.net/open.file/0150624/L/Photo copyright owner and Airliners.net
Aren't these the greatest aircraft along? A Shuttle, the re-usable 'aircraft' that goes to space and back, and these SCA (Shuttle Carrier Aircraft), both of which are -100 variants and the foreground is a ex JAL -SR46, JA8117 then (sistership to JA8119 which was a/c of the worse single aircraft accident in 1985 till now).
Hope these aircrafts can be flying as long as their operational life holds, two of the oldest 747s around...