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Space correspondent jay barberie to explain that is go on. what happened? >> they have done this hundreds of times, jeff. as the progress of an unmanned spacecraft russian built carrying fuel, food, cargo for the crew on board, there are six people up there, it was appro h approaching its docking port and they lost communications with it. so they had to make a fly off, get away from the space station, and it is now six to seven miles away and is sitting out, waiting to try again, possibly sunday. no one is in any danger at anytime. but a few years back, the same type of progress -- ran into th...

What's so great about the robots, what can they do we weren't able to do before? >> they are called -- martha: they are r2d2. >> they're dex reduce robots, they have agile rnlg -- agile, human-like hands that can do tasks that hulky robots can't do and they have each their own interests, gm wants to use technology for manufacturing. right now there are massive crane robot necessary plants and those are dangerous to stand near, they have to be caged off, and there's a big safety system that costs a lot of money and takes up space. martha: the robots they were using at gm, they had to keep them ...