The Sochi Olympic torch has started its first spacewalk.


NASA Live TV showed Russian cosmonauts Oleg Kotov and Sergei Ryazanskiy carrying the unlit Olympic torch, bobbing weightlessly at the end of a tether in a darkness dotted by stars, outside the International Space Station on Saturday.


The torch was launched into space from the Russian-operated Baikonur cosmodrome in Kazakhstan on Thursday morning. It will return to Earth with a three-man crew on Monday.


The torch will not burn aboard the space outpost because lighting it would consume precious oxygen and pose a threat to the crew.


The Olympic torch was taken aboard the U.S. space shuttle Atlantis in 1996 for the Atlanta Summer Olympics, but this is the first it time it has been taken outside a spacecraft.