Even when spacewalking, don't forget your toothbrush! You never know when you'll need it to fix a key power system.<img src="http://feeds.feedburner.com/~r/DiscoveryNews-Top-Stories/~4/_BjbDLOdils" height="1" width="1"/>
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Even when spacewalking, don't forget your toothbrush! You never know when you'll need it to fix a key power system.<img src="http://feeds.feedburner.com/~r/DiscoveryNews-Top-Stories/~4/_BjbDLOdils" height="1" width="1"/>