good morning. i m john muller. and i m diana perez. here s some of the top headlines we are following this morning on world news now two american astronauts are hoping to finish their repair mission to install the cooling pump during the space walk. they will explain the challenges in space and what s up next. target and the justice department is investigating the theft of credit and debit card information from about 40 million customer accounts. target offering free credit monitoring for some customers hit by the security breach. many major retailers are open at this hour hoping last-minute shoppers will help to boost the sagging line. holiday sales were down 3% last week, mainly due to the weather. san francisco s candlestick park has hosted it s last 49ers game. they watched as bowman tipped
over the weekend, astronauts rick mastracchio and michael hopkins removed the faulty cooling pump, which is the size of a refrigerator. any now must install the new one. their task is a delicate one. the equipment contains a knoxious cooling fluid, ammonia. some of the danger is hooking up the big heavy an money yag lines, they re thick and massive. hooking those up if you were to leak ammonia, it s not a pleasant chemical. you couldn t bring it inside. there s definite risks out there. mastracchio will be wearing a newly tailored space suit on today s mission, a replacement after a cooling issue with his previous suit during the last walking it s the only issue that i personal liam having is it s have he very cold. i got very, very good air flow in my boots, but my toes are quite cold. nasa says there was never nel danger to the astronaut. ali velshi five hours of meticulous work for mastracchio and hopkins on saturday, day one of the space walk is being
international space station s cooling system that need to be made. if everything goes well, they will have a primo look at santa s flight. no doubt the the two flight engineers scheduled to do the space walk will have the best seat in the house for santa s flight as they finish up the work they started on saturday. you re welcome. thank you. good job. today astronauts will venture back out of the orbiting international space station. their mission, to replace a pump needed to cool the vessel. i don t know if you believe in miracles but i have the hitch pin on the first try. the two astronauts removed the faulty cooling pump, the size of a refrigerator. they now must install the new one. their task is a delicate one. the equipment contains a noxious cooling fluid, ammonia.
you re looking at from space and they are amazing. it s been nearly two weeks of high drama for nasa. first a crucial pump malfunction, then to further complicate matters they couldn t finish the repairs this weekend because of problems with one of the space suits. what is the latest on this complicated mission? we know the spare module or pump is already point signatures and now they are continuing to work to properly install and hook it up to the international space station. astronaut rick mastracchio and michael hopkins are trying wrap up the job they started on saturday when they removed a faulty cooling pump that s the size of about a refrigerator. the pump contains am mmonia makg their job more difficult. the spacewalk was delayed because they had to change rick
sweat out a space walk, but there s no need to rely on hollywood for drama this christmas eve. reporter: today the two american astronauts will step out of the space station to finish what they started this weekend, replacing this cooling pump. i know you train for it. but is it scary when you are up there and there s nothing else? it is a scary. it is a matter of managing the fear. reporter: adding to that fear the aging space suits. in july, an italian space walker nearly drown when water leaked in to his helmet. my head is really wet. reporter: saturday, another problem very, very cold. reporter: today the duo hopes to finish the job. christmas morning we find a new pump module under the tree on the space station. reporter: and you thought your holidays were stressful. ryan owens, abc news, the johnson space center in houston. the space walk they were out on, 5 1/2 hours and there s a switch on the suit they wear that may have been left, it cooled them down,