Space station pump fixed after two spacewalks
![](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2013/12/space_walk_free.jpg?fit=860%2C460&ssl=1)
During a spacewalk, NASA astronaut Rick Mastracchio helps to identify the problem with a faulty coolant pump on the International Space Station.
NASA
During a spacewalk, NASA astronaut Rick Mastracchio helps to identify the problem with a faulty coolant pump on the International Space Station.
NASA