"Multiple Coolant Leaks Raise Concerns about Russian Module on ISS"

A radiator on the Russian Nauka module of the International Space Station (ISS) started leaking coolant, marking the third coolant leak incident involving Russian hardware at the station in less than a year. The leak was noticed by flight controllers, and the crew visually confirmed it. The coolant leak was from a backup radiator on the Nauka module, originally from the Rassvet module. Both NASA and Roscosmos confirmed that the station and crew were not in danger, and there were no impacts on space station operations. This incident raises concerns about potential design or manufacturing flaws with Russian spacecraft.