The International Space Station is once again leaking ammonia from a cooling system, NASA said Thursday in a news release.
The crew is not in danger, NASA said.
The space station crew reported seeing small white flakes floating away from the station, the space agency said, So NASA helped locate the leak with external cameras while the crew used hand-held cameras pointed out windows.
The leak was in a cooling loop in a solar array that has leaked before. NASA said crew members tried to fix the leak in November. It is unclear whether this is the same leak or a new one.