For the first time since 1999, spacewalking astronauts will be out on Christmas Eve, and they’re planning to give the International Space Station a nice big present: a new refrigerator-sized coolant pump module that NASA hopes will get the station back to normal.
Two American astronauts are spending Christmas Eve working in the vacuum of space to hopefully fix the vital cooling system aboard the International Space Station. NASA astronauts Mike Hopkins and Rick Mastracchio officially started the spacewalk at 6:53 a.m. EST (1153 GMT). The two astronauts ventured outside of the space station’s Quest airlock shortly afterwards, getting to work on their second spacewalk in four days. You can watch the spacewalk live on SPACE.com on Tuesday via NASA TV.
