Sexiest Russian spy bids farewell to astronauts
Chapman took part in a farewell ceremony for Russian cosmonauts Aleksandr Kaleri and Oleg Skripochka and their US colleague Scot Kelly at the Baikonur Russian cosmodrom.
They will spend the next six months as members of Expedition 25 aboard the station.
New navigation, control and data processing systems are also being delivered to the ISS.
The spacecraft is expected to dock with the station in two days.