First transmitted in 1995, this special edition marks the end of the cold war space race and the beginning of a new era of space exploration, as America and Russia embark on a joint project.
The launch of Space Shuttle Atlantis heralds a historic event in space; the first time an American space shuttle will dock with the Russian space station Mir.
The programme travels to Chicago to look at the preparation undertaken by NASA and in Moscow's Star City, Helen Sharman takes us on a tour of a Mir replica, revealing what awaits the astronauts.
