NASA on Wednesday confirmed the International Space Station has run into an urgent (but not emergency) situation involving one of two cooling systems failing. The crew is reported to be safe for now, but the incident may require a spacewalk to fix the issue within the next 24 to 48 hours. The situation is currently being assessed by NASA, and might not require any intervention from the crew at all if the problem works itself out.
According to NBC’s Tom Costello, the ISS crew is currently conserving power while NASA figures out its next move here on the ground. Engineers are allegedly hoping a software fix can do the trick; if not, a space walk might be the only resort.
Earlier this year, astronauts aboard the ISS performed a spacewalk in order to fix a broken pump, which had been leaking coolant. The spacewalk took hours, but the issue was eventually fixed. Details are still cagey, and NASA has yet to decide a course of action, but at least we know the crew is currently safe. Hopefully no unforeseen dangers arise as the issue gets worked out.