Looks like things are winding down. Both astronauts are safe. The spacewalk mission actually finished the first part of the job, connecting jumper cables and data/power connections, but when beginning the next task, Luca Parmitano noticed water filling up in his helmet. Ground control called the two back inside since the water leak appeared to be increasing without an obvious cause or solution. NASA noted on the livestream that neither astronaut was in serious danger, but we're most impressed at how calm everyone remained during this whole thing, which would reduce most of us terrestrial Earthlings to tears and soiled spacesuits.