The Soyuz spacecraft carrying US astronaut Tracy Caldwell Dyson and Russian cosmonauts Alexander Skvortsov and Mikhail Kornienko on Saturday successfully undocked from the International Space Station, Russian mission control center said. 'The spaceship undocked on time and without any glitches,' the mission control press service said. The Soyuz capsule failed Friday to undock for the first time in a decade of flights to the International Space Station, forcing the three crew members to remain an extra day in orbit. 