Russian cosmonauts have congratulated their countrymen on the Day of the National Flag of the Russian Federation. In our video,

Russian cosmonauts have congratulated their countrymen on the Day of the National Flag of the Russian Federation. In our video, they share warm words from the International Space Station. To learn more about how they prepare for their mission into orbit, watch our documentary, ‘How I Became A Cosmonaut’. #Russia FOLLOW ? News&Docfilms Channel Source: RT Documentary