On September 24, 2010 the departure of the Russian Soyuz TMA-18 spaceship from the International Space Station was delayed for technical reasons and will be postponed until September 25.
The undocking was to be performed at 01:39 UTC on September 24, 2010.
Russian cosmonauts Aleksander Skvortsov and Mikhail Korniyenko and NASA astronaut Tracy Caldwell-Dyson, who were travelling on board the space ship, returned back to the ISS.
