Watch NASA's Emergency ISS Spacewalk Live Right Now (Updating)

Two days ago, astronauts on the ISS discovered some little white flakes suspiciously floating away from the station. And now, they're already floating outside in zero gravity to fix it. From planning to go-time, this has been the most impromptu spacewalk in NASA history, and you can tune in below. » 5/11/13 11:46am 5/11/13 11:46am