The first in a series of seven docking missions the US Space Shuttle Atlantis flew to the Russian space station Mir, the STS-71 mission was a notable episode in spaceflight history, as it marked the 100th manned space launch by the US and the first ever on-orbit crew change. The five-day docking of the two crafts also marked the creation of the largest spacecraft ever placed into orbit at that time. When linked, Atlantis and Mir had a total mass of how many tonnes? Discuss...
Docks with for the First Time (1995) (http://encyclopedia.thefreedictionary.com/STS-71)
Can you make me clear what type of discussion are you expecting ???