Spacewalking Astronauts Replacing Blurry Camera on Robot Arm

Mission Control noticed his red tether seemed frayed and worn and ordered Acaba to "remain put" with his good waist tether locked to the structure as Bresnik went to get him a spare. Spacewalking astronauts always have more than one of these crucial lifelines in case one breaks. They also wear a jetpack in case all tethers fail and they need to fly back to the space station.