You would think that the last thing that an astronaut would fear while performing a spacewalk would be drowning. How on earth does that happen? Oh, wait a minute, he wouldn’t be on Earth. I guess out there in the wild blue yonder all the rules change. Ask Luca Parmitano, an Italian astronaut who worked on board the International Space Station (ISS). It seems that over a liter of water accumulated inside his helmet obstructing his ears and his eyes and raising the possibility that he could drown in space.
He isn’t the only one to suffer spacesuit problems during spacewalks, Extravehicular Activities or EVAs in NASA-speak. Here is an interesting article from The New Scientist on five such situations.