Astronauts made a rare six hour spacewalk on Christmas Eve to fix ISS

For only the second time in NASA story , two astronaut made a spacewalk on Christmas Eve . Astronauts Rick Mastracchio and Michael Hopkins install a new ammonia ticker to fix the cooling loop on the ISS . You ca n’t thump that Christmas Eve , even if you ’re Santa Claus .

NASA hastheir livestreamgoing of the spacewalk and Spaceflight Now is covering it with play - by - romp detail . After six hours , it seems the two astronauts have been able to fix the trouble on the ISS . One astronaut suppose , “ Houston , you ’ve pay back yourself a newfangled heart module . ”

https://cdn.livestream.com/embed/spaceflightnow?layout=4&autoplay=false