Backup Cooling Pump News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Engineering but sometimes comes down to the delicacy of the human eye guiding it in. right now they are establishing the fluid lines, electric lines to the test this backup pump later today. jenna: it is so remarkable they're doing this on christmas eve when so many of us are doing a lot less i guess. phil, what about christmas day though? i know there was a scheduled walk but then it wasn't entirely on. where are we now having to do additional spacewalks? >> reporter: these two astronauts accomplished more than was planned on saturday which shortens what needed to be done today and if all goe...