Ponder the exacting systems engineering, reliability testing, required qualifications and multiple i/o instrumentation and control involved. Observe the precise, corrective jets to keep the process under control.
This, is how a good future is going to be built: near earth colonisation and Lunar colonisation are the first stages to Solar system colonisation. (Note, they are expected to remain on the ISS for 30 – 119 days.)
Blue Danube is extra, but it speaks to the cultural patterns that lie behind that precise docking exercise and all the rich promise it reflects. END