Commander Chris Hadfield tweeted from space this morning that the crew of the International Space Station (ISS) is planning a spacewalk to fix an in a critical cooling system.
NASA said the crew is not in danger, but the coolant is . Since the cooling system affects one of eight solar arrays that provide power to the ISS, NASA must reroute power sources to keep all systems fully functional.
This comes at a somewhat inconvenient time for the astronauts on the ISS. Three crew members, including Hadfield, are after a five-month stint aboard the station. The leak is not expected to affect the undocking process.