Leak from space station not a threat
NASA says the leak from the cooling system in the International Space Station poses no threat to the crew.
Astronauts first noticed the problem when they saw small white flakes floating away from the station.
The crew used external cameras that allowed NASA to discover a leak coming from a cooling loop inside of a solar array.
Crew members tried to fix a leak in the same area back in November.
Officials are not sure if this is the same leak or a new one.
The three man crew is scheduled to leave the space station Monday evening.
NASA officials say they do not believe the problem will affect undocking. But they will have more information Friday morning.