How do you know each other? http://www.arthemia.sk/2015/01/31/vybusna-chut-leta/ approved pharmacy NASA, which oversaw the spacewalk, is investigating thecause of Parmitano's helmet malfunction. Pieces of the failedspacesuit are due to be returned to Earth for analysis aboard anupcoming SpaceX Dragon cargo ship or Russian Soyuz capsule, NASAspokesman Josh Byerly said.