Third space station leak in a year prompts doubts about Russia’s programme

Roscosmos says temperatures in affected unit normal after flakes of frozen coolant seen in live feed

The Russian segment of the International Space Station (ISS) has sprung its third coolant leak in under a year, raising new questions about the reliability of the country's space programme even as officials said crew members were not in danger.

Flakes of frozen coolant spraying into space were seen in an official live feed of the orbital lab provided by Nasa on Monday, and confirmed in radio chatter between US mission control and astronauts.