What hazards are presented when the shuttle Discovery undocks from the space station?
The shuttle pilot is very careful not to bump into the space station. This actually happened to MIR when one of the Russian unmanned Soyuz capsules went off course and bumped into station itself. The shuttle is also careful not to use its rockets in a way that the exhaust will coat and damage the solar cell arrays of the space station. It then orbits the station very slowly to take pictures of the outside to compare with earlier photos. This will allow scientists to see how the skin of the station is aging. I hope this helps.