spacewalks are risky. last summer one astronaut nearly droppedded when it leaked inside a space suit. now they wear the improvised snorkels in the suit and water absorption pad inside a helmet. they will take a second walk on monday and possibly another on christmas day, wednesday. the russians could be out there again on friday. taking a look. but so far, no real problems. a clear picture from space at the moment. 6-1/2 hours at 260 miles above the planet's surface. dangerous one. everybody watching closely. we'll have more in an hour's time. >> thank you. fascinating photos from space now. joining us, we're happy and fortunate to have the former nasa astronaut ron guerin sharing insight what is happening above the earth. he knows what is involved since he was a spacewalking veteran and the last person to hand the ammonium pump that now has to be replaced.

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